Hasan Group

The joy of research, the love of science, the fascination of nature, the aesthetics of quantum physics, the excitement of new exploration ....

Hasan: A speckle of dust (Princeton University homepage feature, Summer Reads)

“Emergent phenomena in topological physics are probably all around us—even in a piece of rock,” says Zahid Hasan (Scientific American) 2017
See also "The strange topology that is reshaping physics" (NATURE news, homepage feature 2017)

Princeton scientists awarded Moore Investigator grant for quantum system research (2020-25)
Hasan lab received grant for theoretical and experimental (spectroscopy+transport) research on quantum matter (Moore website 2020) and DOE/BES grants
(Grant statement:) "Developing advanced spectroscopic, transport and microscopic techniques combined with first-principles theoretical calculations to design, discover and investigate topological quantum matter."

Princeton scientists discover a topological magnet that exhibits exotic quantum effects
ICTP (Int. Center for Theoretical Phys) Conference on Topo. Matter: Directed by Hasan and Kane (Italy)
Kavli KITP program on "Topological Insulators and Topological Superconductors" (USA)
Banff Int. Research Station for Mathematical Innovation and Discovery (BIRS program) on "Topological Insulators and Topological Superconductors" (Canada)
Sir Nevill Mott (Nobel Laureate ’77) Lecture Series
Robert H. Dicke symposium (2021)
Gordon Moore/EPIQS symposium (2021)
Discovery of chiral charge-order in kagome lattice (2021)

Topological Insulators grown (made) in Hasan Lab

We work to advance the frontier of modern physics:
Research to TextBook Physics: Several of our experimental results on topological quantum matter have been featured in many textbooks by many authors over the last ten years, most recently featured in "Modern Condensed Matter Physics" (Girvin & Yang, Cambridge University Press) GoogleBooks,
One of the early reviews on new "Topological Matter":
“Topo. Insulators"(and Superconductors) by Hasan & Kane, Rev. of Modern Physics 82, 3045 (2010)
“Topo. Insulators, Topo. Superconductors & Weyl Semimetals" by Hasan, Xu & Bian, Phys. Scr. T164 014001 (2015)
“Weyl Semimetals, Fermi Arcs & Chiral Anomalies" by Jia, Xu & Hasan, Nature Materials 15, 1140 (2016)
“Novel Quantum Matter with Topological Twists" GBMF Gordon Moore Foundation News (2019)
Recent Reviews (invited):
“Probing Topological Quantum Matter with STM/STS" by Yin, Pan & Hasan, Nature Reviews Physics 3, 249-263 (2021)
“Weyl, Dirac & high-fold chiral fermions in topological matter" by Hasan, Chang et.al., Nature Reviews Materials (2021)
Strongly Correlated Matter (perspective review article): Charge-order and Superconductivity in Kagome materials
Nature Physics (2021)
Time-reversal symmetry-breaking charge order in a kagome superconductor
NATURE 602, 245-250 (2022)

A vast majority of our experimental works are based on our own theoretical predictions of topo.materials:
Project Development: Theory to Experiments to Patents

(Unpredicted) and/or Unexpected Novel Quantum Effects (Link)
Quantum Many-Body Physics:

Correlated phases of fermions in Kagome lattices:
Featured in condmat journal club (2021)
Kagome lattices with chiral charge density (2021)
Nature Materials 20, 1308-1309 (2021) Strongly Correlated Matter:
Charge-order and Superconductivity in Kagome materials
Nature Physics (2021)

Time-reversal symmetry-breaking charge order in a kagome superconductor
NATURE 602, 245-250 (2022)

Discovery of unconventional chiral charge order in the normal state of kagome superconductor KV3Sb5
Nature Materials (2021)
Giant and anisotropic many-body spin-orbit tunability in a strongly correlated kagome magnet
Nature 562, 91-95 (2018)
Many-body Resonance in a Correlated Topological Kagome Antiferromagnet
Physical Review Letters 125, 046401 (2020)
Anomalous transport and chiral charge order in kagome superconductor CsV3Sb5
arXiv:2105.04542 (2021)
Rare earth engineering (of many-body physics) in topological kagome magnets arXiv:2007.09913 (2020)
Physical Review Letters (2021)
Nodeless kagome superconductivity in LaRu3Si2 (Novel kagome superconductors)
Phys. Rev. M 5, 034803 (2021)
Fermion-boson many-body interplay in a frustrated kagome paramagnet
Nature Commun. 11, 4003 (2020)
Negative flatband magnetism in a spin-orbit coupled kagome magnet
Nature Physics 15, 443 (2019)
Quantum-limit Chern magnetism in topological kagome magnet
Nature 583, 533-536 (2020)
Unconventional Scaling of the Superfluid Density with the Critical Temperature in TMD superconductors
Science Advances 5, eaav8465 (2019)
Spin-orbit quantum impurity (many-body physics) in a topological kagome magnet
Nature Commun. 11, 4415 (2020)
Tunable chiral charge order in kagome superconductor RbV3Sb5
arXiv:2105.00550 (2021)
Observation of metallic surface states in the strongly correlated Kitaev-Heisenberg candidate
Phys. Rev. B 93, 245132 (2016)
Fermi surface topology and hot spot distribution in the Kondo lattice system CeB6.
Phys. Rev. B 92, 104420 (2015).
Quantum phase transition of correlated iron-based superconductors
Physical Review Letters 123, 217004 (2019)
Fermi surface topology and quasiparticle dynamics of host cobaltate superconductors
Physical Review Letters 92, 246402 (2004).
Momentum dependence of superconducting gap, strong-coupling dispersion kink, and tightly bound Cooper pairs in the high-Tc (Sr,Ba)1-x(K,Na)xFe2As2 superconductors.
Phys. Rev. B 78, 184508 (2008).
Low-lying quasiparticle modes and hidden collective charge instabilities in parent cobaltates superconductors.
Physical Review Letters 96, 216405 (2006).
Emergence of Fermi Pockets in a New Excitonic Charge-Density-Wave Melted Superconductor.
Physical Review Letters 98, 117007 (2007).
Fermi surface topology and low-lying quasiparticle dynamics of parent Fe1+xTe/Se superconductor.
Physical Review Letters 103, 037002 (2009).
Quasiparticle Dynamics in the Vicinity of Metal-Insulator Phase Transition in Correlated Cobaltates.
Physical Review Letters 96, 046407 (2006).

A recent review (invited) that covers quantum many-body physics noted above:
“Probing Topological Quantum Matter (including many-body physics) with STM/STS"
Yin, Pan & Hasan,
Nature Reviews Physics 3, 249-263 (2021)

Cumrun Vafa (Harvard) and Zahid Hasan (Princeton) share
international Mustafa Prize in All Areas of Science & Technology (2021)
link to the Mustafa (private) Foundation website
News at Harvard University
News at Miller Institute at UC-Berkeley
News on Miller Professors at UC-Berkeley
Dept. News at Princeton University

Hasan elected Fellow of the American Academy of Arts & Sciences (2020)
link to the Academy website
News at Berkeley Lab
News at Princeton University
News release at the Academy
U.S. Government (DOE) Award: Ernest Orlando Lawrence Award (2020)
News at Princeton
News at Berkeley Lab
News at Stanford/SLAC
News at U.S. Gov (DOE)
News at Miller Institute at UC-Berkeley
Research work carried out at Princeton, Berkeley Lab and Stanford/SLAC.
Work at Princeton ; Work at Stanford/SLAC ; Work at Berkeley Lab
Research Highlighted SSRL/SLAC(Stanford)

Colloquium "New Topological States of Matter" California Inst. of Technology
Colloquium "New Class of Topological States of Quantum Matter" Harvard University
Colloquium "New Class of Topological States of Quantum Matter" Princeton University/IAS
Colloquium "New Class of Topological States of Quantum Matter" Columbia University
Colloquium "New Topological States of Matter" University of California at Berkeley

Project Development: Theory to Experiments to Patents

APS: American Physical Society Recognition for Belopolski's PhD research on "Topological Magnets"

Suyang Xu joins Harvard University as a tenure-track faculty.

10+ group members at Hasan lab recognized for high-impact research:
Lab members including Alidoust, Belopolski, Bian, G.Chang, T.Chang, Hasan, Neupane, Qian, Sanchez, Zheng, Xu listed as
"Highly-Cited Researchers" (2019)
by the Institute for Scientific Information (Clarivate Analytics) based on Web of Science
Many of the lab members' works gathered 10,000+ citation each within a short period of time.

A vast majority of our experimental works are based on our own theoretical predictions of topo.materials:

Topological Magnets in 2D and 3D (Chern, Kagome and Weyl magnets)
Discovery of a quantum limit Chern magnet TbMn6Sn6 (2020)
A novel Chern magnet and Haldane model?

RVB (Anderson) model is an early example of topological phase
P.W. Anderson on topological matter research (NSF news, National Science Foundation)
Anyon/Majorana research at HasanLab is supported by U.S. DOE (Quantum Information Science program under National Quantum Initiative/NQI) and Betty & Gordon Moore Foundation (California)

"My advice is not to aim for prizes or awards. We’re in this for the joy of research, the fascination, the love of science. … " Princeton's Jim Peebles (PhD 1962), winner of the 2019 Nobel Prize in Physics (for his life-long contributions, over several decades since 1964, in physical cosmology; Dicke, Peebles et.al., paper 1965).
Over the years, at times, Jim asked some of the most profound scientific questions (and insightful comments) in connection to our quantum matter research at various presentations at Princeton. Congratulations Jim!

(Q. Epistemology) "Experiments are the only means of (real) knowledge at our disposal. The rest is poetry, imagination" (Max Planck)
"To see a world in a grain of sand, And a heaven in a wild flower, Hold infinity in the palm of your hand,
And eternity in an hour" (W. Blake)
News/Talks: "To see the world of topology in a grain of dirty matter..." :

Theoretical predictions of "topological quantum matter" at LTQMAS-Princeton.
How X-rays Pushed Topo. Matter Research Over the Top (Berkeley Lab News)
Work at Berkeley Lab helped to spawn a revolution in materials research
Theoretical discovery of Bi2Se3 class as Topo.Insulators (2008)
News at Nature Physics mentions our theoretical contribution in the discovery of Bi2Se3 as 3DTIs (2009)
Discovery of a Weyl magnet (SSRL/SLAC(Stanford) Highlight Science 2020 )
Novel quantum-matter with topological twists (Moore foundation News 2019)
Theoretical Prediction and Discovery of Novel "Topological Quantum Matter"
(Princeton University Homepage News 2019 )
Scientists discover a topological magnet that exhibits novel quantum effects (National Science Foundation (2020))
Hasan elected to American Academy of Arts and Sciences (Princeton News)
(Berkeley Lab news)
Quantum Matter Summer School (Topological Magnets in 2D and 3D)
Field-free platform for Majorana-like zero modes in superconductors with a topological surface state (2020)
A quantum-limit Chern magnet with chiral topological edge state (Nature 2020)
Topological Matter: Physics Today (2020)

APS invited talk and Session: Theoretical and Experimental Discovery of Topo. Chiral Crystals (2020)
Sonia Zhang awarded Simons fdn fellowship and joins Columbia Univ., Congrats Sonia!
Su-Yang Xu joins tenure-track faculty (Asst Professor) at Harvard University, Congrats Su-Yang!
Nasser Alidoust joins Rigetti Quantum Computing (Berkeley) Congrats Nasser!
Yi-De Chuang promoted to Staff Scientist at Berkeley Lab Congrats Yi-De!

David Hsieh (PhD 2009) promoted to full professorship at Caltech, Congrats David!

Magnetic Weyl semimetal discovery (Physics Today 2019)
Exotic Superconductivity and P.W.Anderson theorem? (Princeton 2019)
News on ferromagnetic Weyl semimetal discovery (PhysicsWorld 2019)
Theoretical discovery of Weyl semimetal class TaAs (PhysicsWorld 2015)
Patent on Weyl semimetal discovery methods; APS invited talk
"Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet" (Science 2019) is based on our theoretical prediction of Weyl loops and topological surface states in a room temperature magnet ( PRL 2017 )
elaborated in 2019 (APS invited talk )
"The Princeton group has long been at the forefront of discovering new materials with topological properties," "By extending this work to a room temperature ferromagnetic and demonstrating the existence of a new kind of 'drumhead' surface states, this work opens up a new domain for further discoveries." (News 2019 )

Topological Insulator to Weyl Fermions and Beyond.. ( Colloquium 2019 )
Magnetic Weyl fermions ( Princeton 2019 )

Our theoretical prediction of Magnetic Weyl CeAlGe inspired expts at MIT (Science (2019))

Engineering topological behavior opens new frontier in quantum materials ( Moore foundation News )
Massless particle named top-10 breakthrough ( Moore foundation News )
Congratulations to Sonia Zhang on winning the Kusaka Memorial Prize 2019 (Dept. of Physics, Princeton)
Her Vector-Field STM/STS work, published by NATURE was featured on PhysicsWorld homepage in 13-Sept'18.
Congratulations to Ilya Belopolski on winning the Kusaka Memorial Prize 2017 (Dept. of Physics, Princeton)
His contribution to Weyl metal discovery , published by SCIENCE was also featured on PhysicsWorld homepage. Ilya is also a co-inventor of the patent on Weyl discovery(see, Weyl returns)

"Topo. Insulators" RMP (with 12,000+ citations) featured under "90 years of RMP" celebration at APS (2019)
About 2/3 of the "Topo. Insulators" RMP (2010) is about our experimental works covered in 6 original papers (KITP-2007, Nature'08, Science'09, NaturePhysics'09, PRL'09, Nature'09a, and Nature'09b).
Earliest of the results reported in 2007 (KITP-2007 leading to Nature 2008).

All-time most-cited RMPs: Complex Networks( #1), Topological Insulators( #2), Graphene( #3)

An upside-down (Kagome) Magnet ( News at Nature Physics 2019 )
"Topological Physicists" at ( PhysicsWorld 2019; This is mostly about our 2017-18 theory work on chiral crystals: "Unconventional Chiral Fermions and Large Topological Fermi Arcs in RhSi" (PRL 2017) and later theory papers (Nature Mat)).
Theoretical prediction of "4-unit Quantized circular photogalvanic effect" also appears in the same paper (PRL).
Topological Chiral Crystals ( Nature Research 2019 )
Prediction and Discovery of "Topological Chiral Crystals" ( Princeton News, Nature 2019 )

Topological band theory pioneer: David Thouless (1934-2019)
“It's about how ordinary matter can behave in extraordinary ways." (Hasan on Thouless work at Science News)
Group members, students met with David during his visit for Anderson90. David expressed interest in our work. Some memories of David is here at PWA90

How X-rays Pushed Topological Matter Research Over the Top (Berkeley Lab News)
The Strange Topology That Is Reshaping Physics (Scientific American)
The Best Topological Conductors Yet: Spiraling Crystal Is the Key to Exotic Discovery (Berkeley Lab News)
Scientists discover a 'tuneable' novel quantum state of matter (Princeton University News)
Exotic spin textures.. (Topological Insulators) ( "Search & Discovery" PHYSICS TODAY )
Topological Insulators ( Stanford University/SLAC/Photon-Science )
Discovery of Weyl Fermion Semimetals ( PhysicsWorld )
Topological Insulators ( feature in PHYSICS TODAY )
Topo. Insulator to Weyl fermion ( Nature News )
Weyl fermion discovery ( ALS @ Berkeley Lab)
Weyl Semimetal discovery methods US Patent App. 10/214,797
Weyl Semimetal discovery methods US Patent App. 15/352,279 Approved
Weyl Semimetals, Fermi Arcs and Chiral Anomalies ( Cover Story in Nature Materials )

Chiral Majorana fermions in superconducting topological insulators ( Europhys Letters, Editor's Highlight)
Discovery of Weyl Fermion Semimetals and Topological Fermi Arc States ( (review))
Topological Phase Transition and Texture Inversion ( Science )
Correlated Kagome Magnet ( Nature Physics )
A quantum magnet with a topoogical twist ( Research at Prnceton )
Nematic (strongly correlated) Kagome Magnet ( Nature )
Discovery of Weyl Semimetals ( Berkeley Lab )
"Welcome to the Weird Mathematical World of Topology" (DISCOVER magazine)
Prediction of Quantized circular photogalvanic effect in RhSi chiral conductors ( Phys. Rev. Lett. )

Five present & past group members (Xia, Lin, Wray, Xu and Hasan) listed in Highly-Cited-Researchers 2018 (Top-1%)
Each member had several papers published with us at Princeton that are now cited 1,000+ times each and total average citations 10,000+ given (to each member) to our publications by colleagues world-wide (2018).

PhysicsWorld (2018): "Physicists find new ‘control knob’ for the quantum topological world" (Nature 2018)

Our theoretical prediction of Kramers-Weyl fermions highlighed by Nature Materials News & Views 2018
"By considering the topology of chiral crystals, a new type of massless fermion, connected with giant arc-like surface states, are predicted. Such Kramers–Weyl fermions should manifest themselves in a wide variety of chiral materials."
News at Nature Materials 2018

(Theoretical Prediction of) Chiral fermions and large topological Fermi arcs in RhSi family
Topological Chiral Crystals (2017)
"Kramers theorem-enforced Weyl fermions: Theory and Materials Predictions" (2016)

"New emergent phenomena in topological matter" (Moore Symposium talk 2018)

Weyl fermions in 2018: "Wily Weyls" (PhysicsWorld 2018)
Nature's Scientific Reports features our work on topological "Nexus Fermion" 2018
NSF New Frontiers Workshop Talk (National Science Foundation):
"Theoretical & experimental discovery of Weyl, topo. nodal line & chiral materials"

Moore Symposium Talk (Moore Foundation):
"Theoretical & experimental discovery of Weyl, topo. nodal line & chiral materials"

DOE/Basic Energy Sciences Workshop Talk (U.S.DOE):
"Theoretical & experimental discovery of Weyl, topo. nodal line & chiral materials"

"New topological states of matter: platform for emergent Dirac-Majorana-Weyl" (Colloquium at CalTech)

DISCOVER magazine: Topological Insulators to Weyl, Majorana fermions and beyond (2018)

Discovery of Lorentz-violating topological Weyl fermions in LaAlGe (Science Advances)
"Chiral Majorana fermion modes on the surface of superconducting topological insulators" (EPL 2018)

"New topological states of matter: platform for emergent Dirac-Majorana-Weyl" UC Berkeley (colloquium)

A vast majority of our experimental works are based on our own theoretical predictions of materials (link)
PhysicsWorld: Weyl fermion at APS Meeting
"Theoretical and Experimental Discovery of Weyl, Nodal-line and Chiral Anomaly Materials" (Gordon Moore Symposium)

Guoqing Chang joins our group Welcome Guoqing!
Ilya Belopolski wins Kusaka Memomrial Prize in Physics (Princeton Univ), Congratulations Ilya!
Suyang Xu named in the global Highly-Cited-List (2017); Congratulations Suyang !
Nasser Alidoust joins Rigetti Computing (Berkeley), Goodluck Quantum Computing Nasser!
David Hsieh (PhD'09) (faculty at CalTech) named PECASE award winner (2017); Congratulations Dave !

Prof. Hasan serves on the national level U.S. DOE roundtable panel on "Frontiers of XFEL Ultrafast Science" (2018)
"Engineering topological states opens new frontier in quantum-materials" News at Moore Foundation (2017)

Nature Research features two of our papers (magnetic-Weyl and Nexus Fermions) in connection to APS-Physics MM (2018)
Invited Review Article (STM/STS) on Quasiparticle Interference in Weyl Semimetals (2018)

Room-temperature magnetic-Weyl fermion and nodal line semimetal states in half-metallic Heusler (2017)

2017 Sir Nevill Mott Lecture in Physics

News at NATURE (Homepage news, July 2017) ".. strange topology that is reshaping physics"

Kavli KITP program on "Topological Insulators and Superconductors" (Collection of Talks)

Inst. for Advanced Study (IAS, Princeton) School on Topological Matter Useful Reading List

FOCUS issue on "Topological Semimetals" by Nature Materials (Collection of Articles)

International Conference (ICTP) on Weyl Fermions in Materials (Italy)

Prof. Hasan's talk at Physics-Next (APS-Physics/PRL) "Quantum Fields to Condensed Matter"

Discovery of Weyl fermion and topological nodal-line fermions as emergent excitations in topological materials (Joint Quantum Inst)

Prof. Hasan's interview with PhysicsWorld Multimedia (UK)

Weyl Semimetals, Fermi Arcs and Chiral Anomalies Nature Materials (2017)

"Discovery of New Topological Phases of Matter" (Lawrence Berkeley Lab, 2017)

American Physical Society (APS-Physics) Meeting : Weyl Topological Semimetals: Theory and Experiment

"New topological states of matter: platform for emergent Dirac-Majorana-Weyl" CalTech (colloquium)

Some updates: Guang Bian joins the faculty at Univ. of Missouri Goodluck Guang!
Hao Zheng joins the faculty at Shang-hai Univ. Goodluck Hao!
Madhab Neupane joins the faculty at Univ. of Florida, Goodluck Madhab!
David Hsieh joins the tenure-line faculty at CalTech Congratulations Dave !

"Topological Insulators" and "Weyl Semimetals" highlighted by NATURE's Insight on Quantum Materials
along with superconductivity and spin liquids.

Cover page: Nature Materials issue highlights our topological materials works

Faculty Honor (Princeton News) Top Ten

New Topological Materials: Berkeley Lab News

Princeton theory center workshop on Weyl Fermions in Topological Semimetals

Beyond particle Physics (Nature Materials 2017) :

(Theoretical Prediction of ) Drumhead surface states and topological nodal-line fermions in TlTaSe2

Princeton University named Professor Hasan to an endowed chair professorship:
Eugene Higgins Professor of Physics effective, 2017.

(Endowed Professorship) News at Princeton

Miller Professorship Lecture by Prof. Hasan at Miller Institute (UC-Berkeley)

Quantum Materials: Where many paths meet (MRS News 2017) :

(Theoretical Prediction) Nexus Fermions in spin-orbit materials (2017)

Moore foundation Symposium talk : "Theoretical and experimental discovery of Weyl fermion, topological nodal-line fermion and Chiral anomaly materials and the new physics frontier"

(Theoretical prediction) "New type of Weyl semimetal with quadratic double Weyl fermions"

(Theoretical Prediction) Unconventional chiral fermions and large topological Fermi arcs in RhSi (2017)

Princeton theory center (PCTS) talk : "Theoretical and experimental discovery of Weyl fermion, topological nodal-line fermion and Chiral anomaly materials and the new physics frontier"

(Theoretical Prediction) "Magnetic and noncentrosymmetric Weyl fermion semimetals in the RAlX family of compounds" (2016)

"Theoretical and experimental discovery of Weyl fermion, topological nodal-line fermion and Chiral anomaly materials and the new physics frontier" (Los Alamos Lab 2017)

"Theoretical and experimental discovery of New Topological States of Matter (Topo. Semimetals)" (APS-Physics Editorial Office Colloq. 2017)

(Theoretical Prediction) "Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2"

Opening Talk at Max-Planck-Institut (Germany) "New Forms of Matter"

Keynote Talk at Hubbard theory consortium summer school (London) "Topo.Order in Real Materials"

Keynote Talk at NORDITA (2017) "Frontiers of Topological Quantum Matter"

APS-Physics March Meeting (Discovery of Weyl fermions): PhysicsWorld (2016)

"Theoretical and experimental discovery of Weyl fermion, topological nodal-line fermion and Chiral anomaly materials and the new physics frontier" (Rutgers 2016)

Science Talk at Workshop on Topological States of Matter at Frieburg (Germany)

Prof. Hasan's opening Keynote at "New Trends in Topological Insulators" (Germany)

Keynote Lecture at IPS Conference "Topological Insulators and Superconductors"

(Theoretical Prediction) Topological Nodal-Line Fermions in Spin-Orbit Metal PbTaSe2

"Discovery (theoretical and experimental) of Lorentz-invariant and Lorentz-violating emergent Weyl fermions in topological materials (TaAs class & LaAlGe class)"

MIT Chez Pierre Seminar in Condensed Matter Physics: Lecture Link

"Observation of a New Class of Topological States of Quantum Matter"
Physics Colloquium at Harvard University

Link

"Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface"

Lecture Link

Inst. for Adv. Studies Distinguished Lecture (HKUST) "New Topological Phases of Matter"

U.S. DOE User Facility News: "How X-rays Pushed Topological Matter Research Over the Top" (2017)
====================================================================================
News (May-July, 2017):

Scientific American article on Topology Reshaping Physics (based on NATURE artcle)

Berkeley Lab News:

"Work at Berkeley Lab's Adv.Light Source helped to spawn a revolution in materials research"

Paper on Artificial Topological Matter is now published

"A novel artificial condensed matter lattice and a new platform for 1-D topological phases "
Ilya Belopolski et.al., Science Advances (2017)

Review (invited) article is now published
"Discovery of Weyl Fermion Semimetals and Topological Fermi Arc States"
M. Z. Hasan, S.-Y. Xu, I. Belopolski, S.-M. Huang
Ann. Review Cond. Mat. Phys 8, 289-309 (2017)
======================================================================

Theoretical Prediction of Topological Hopf-link semimetals (2017)

"Topological Hopf and Chain Link Semimetal States and Their Application to Co2MnGa"
Guoqing Chang, Su-Yang Xu, Xiaoting Zhou, Shin-Ming Huang, Bahadur Singh, Baokai Wang, Ilya Belopolski, Jiaxin Yin, Songtian Zhang, Arun Bansil, Hsin Lin, and M. Zahid Hasan

Phys. Rev. Lett. 119, 156401 (2017)

======================================================================
News :

Science News (2017) "Quasiparticle known as type-II Weyl fermion violates Lorentz symmetry"

======================================================================
Talk:
"Discovery (theoretical and experimental) of Lorentz-invariant and Lorentz-violating emergent Weyl fermions in topological materials (TaAs class & LaAlGe class)"

MIT Chez Pierre Seminar in Condensed Matter Physics

Lecture Link
======================================================================
Talk:
Canadian Institute For Advanced Research (CIFAR)
Summer School Lecture

"New Topological States of Quantum Matter: Dirac, Weyl/TNL & Majorana Platforms"
========================================================================
Talk:
KITP Program on Topological Insulators and Topological Superconductors

KITP Link
Lecture PPT Link
======================================================================
Talk:
"Topological Surface States: Discovery and Resecent Results"
Physics Colloquium at Cornell University

Link
======================================================================
Talk:
"Discovery of quantum Hall-like effects without magnetic fields in 3D"
Physics Colloquium at Columbia University

Link
======================================================================
Talk:
Max-Planck Institute for the Physics of Complex Systems Talk
"New Forms of Matter: Weyl semimetals, Topological nodal-line metals and related superconductors"

Talk Link
======================================================================

American Physical Society (APS) Talk

"Discovery of Weyl fermion semimetal and topological Fermi arc quasiparticles in TaAs, NbAs, NbP, TaP and related materials"

APS link, Video link, APS Group talks

PhysicsWorld (2016)
======================================================================

	List of topics/talks
	====================================================================== Education/Science Outreach : PDF ====================================================================== New Topological Phases of Matter: Platform for emergent Dirac, Majorana & Weyl fermions (2016) Colloquium at California Inst. of Technology (2016) ====================================================================== "Genie out of the bottle": Topological Insulators (September, 2016): Proceedings of National Academy of Sciences of the USA ====================================================================== PhysicsWorld multimedia interview: "What is a Topological Metal? (2016) ====================================================================== Prof. Hasan awarded a Visiting Miller Professorship by the Miller Institute for Basic Research at the University of California at Berkeley Berkeley Link ====================================================================== Edward Witten's recent review on Topological Phases (2016) Rev. Mod. Phys. 88, 35001 (2016) ====================================================================== Congratulations! Dr. Nasser Alidoust "Discovery of Novel Dirac and Weyl Fermion Materials" PhD Thesis(Princeton) ====================================================================== Congratulations! Dr. Suyang Xu "Discoveries of New Topological States of Matter Beyond Topo.Insulators" PhD Thesis(Princeton) ====================================================================== Experimental discovery of the first 3D topological insulators recognized by APS in 2013 How to discover topological insulator materials ..here A recipe for discovering new topological insulators can be found here ====================================================================== PhysicsWorld (2016) Weyl semimetals, Fermi arcs and chiral anomaly Invited Commentary at NATURE MATERIALS (cover story), November 2016
	" Physicists have discovered a new topological phase of matter, the Weyl semimetal, whose surface features a non-closed Fermi surface whereas the low-energy quasiparticles in the bulk emerge as Weyl fermions. A brief review of these developments and perspectives on the next steps forward are presented." Nature Materials 15, 1140-1144 (2016)
	====================================================================== Bose seminar (public lecture) at the S.N.Bose Center for Advanced Study & Research on physical sciences Topic: "New Topo. States of Matter (Topo. Fermions and Bose-Einstein condensation of Helical Cooper pairs)" Lecture Link ====================================================================== Some examples of our theoretical predictions can be found here ====================================================================== "Theoretical & experimental discovery of Weyl, topo. nodal line fermion & chiral anomaly materials" Keynote talk at Hubbard Theory Consortium center, London Summer School of Condensed Matter Physics 2016, London University, Royal Holloway College, London (UK) Link ====================================================================== Focus Issue on Topological Semimetals ====================================================================== Old/Early (1972-88) topological concepts in condensed matter theory Topology of Kosterlitz-Thouless & Haldane Princeton media link ====================================================================== Weyl semimetals discovered (Xu, Belopolski et.al., at LBNL) Advanced Light Source; Lawrence Berkeley National Labortaory ====================================================================== Princeton Physics News: "Ilya Belopolski won the Harold W. Dodds Fellowship for his work on Weyl fermion semimetals and quantum anomalies" ====================================================================== 2016 Web of Science Highly Cited Researchers Thomson Reuters ====================================================================== 2015 Thomson Reuters Most Influential Scientific Minds Thomson Reuters ====================================================================== PhysicsWorld (U.K.) homepage (August, 2016) Future applications of Topological Insulators PhysicsWorld multimedia interview (100 Second Science Series) Bulk Insulating (Intrinsic) Topological Insulators Bulk Insulating Topo. Insulator: Gigantic surface life-time of an intrinsic topological insulator revealed via time-resolved ARPES M. Neupane, S.-Y. Xu, Y. Ishida et al.; Phys. Rev. Lett. 115, 116801 (2015) Phys.Rev.Lett. Link Transport + ARPES Demonstration of a Fully Bulk Insulating (Intrinsic) Topo. Insulator; Y. Xu, I. Miotkowski, C. Liu et.al.; Nature Physics 10, 956 (2014). Nature Physics Link ARPES Demonstration of helical (topological) Cooper pairing in a proximitized TI/superconductor; S. Xu, N. Alidoust, I.Belopolski et al., Nat. Phys. 10, 943 (2014). Nature Physics Link ====================================================================== Weyl fermions discovered Lawrence Berkeley National Labortaory (U.S. DOE) Sci-HiLight link ======================================================================== Superconducting Topological Materials News at Lawrence Berkeley National Labortaory (U.S. DOE) link ARPES Demonstration of helical (topological) Cooper pairing in a proximitized TI/superconductor; S. Xu, N. Alidoust, I.Belopolski et al., Nat. Phys. 10, 943 (2014). Nature Physics Link ======================================================================== Topological Insulator Spin-Texture Demonstrated Stanford Synchrotron Laboratory, SLAC National Lab (U.S. DOE) link Link ======================================================================== "Theoretical & experimental discovery of Weyl fermion, topo. nodal-line fermion (new fermions) & chiral anomaly materials" Betty and Gordon Moore Foundation Symposium, EPIQS Meeting 2016, California Link ====================================================================== "Theoretical & experimental discovery of Weyl fermion, topo. nodal line & chiral anomaly materials" Lecture at Rutgers University ====================================================================== "Theoretical & experimental discovery of Weyl fermion, topo. nodal line & chiral anomaly materials" NSF New Frontiers of Condensed Matter Physics Meeting (U.S. National Science Foundation) ====================================================================== "New Forms of Matter: Weyl Fermions, Topo. nodal line fermion & new Majorana platforms" Keynote Lecture, Rutherford - Appleton Laboratory, UK Link ====================================================================== Institute for Advanced Study Distinguished Lecture at HKUST New Topological States of Matter (2015) IAS Link ======================================================================
	World's Most Influential Scientific Minds List (2016) Highly-Cited Researcher (top 1%): Clarivet-Analytics/Thomson-Reuters (2016)
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	Moore Symposium Lecture (2014)
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	Topologically protected Single Dirac Cone (Spin-Textured) Nature Physics N&V

	Tilted Weyl cone in topological materials bears an analogy to the lightcone bending near blackholes (simulated Lorentz violation in quantum matter). Science Advances (2017)

	"Discovery of Weyl Fermions, Topological Fermi Arcs and Topological Nodal-Line States of Matter" (Key Developments in Physics: 2Physics, 2015)

	Discovery of Weyl fermion named a 'breakthrough of the year' by Physics World PhysicsWorld News: "Weyl fermions are spotted at long last" News at Lawrence Berkeley National Laboratory (LBNL), Physics Highlights of the Year 2015 (Physics - American Physical Society)
	Highly-Cited Researcher (top 1%): Thomson-Reuters (2014, 2015) World's Most Influential Scientists List : Thomson-Reuters (2014, 2015) Journal publications in 2003-2013 News link
	"Discovery of single-Dirac-cone Topological Insulators" ALS-SPECTRUM Lawrence Berkeley National Laboratory
	"Helical Cooper Pairing in Superconducting Topological Insulators" News link Nature Physics
	New funding for quantum systems News link
	Lawrence Berkeley National Laboratory News
	SLAC National Laboratory News

	EPiQS Program award details To expand research in advanced quantum materials, the Moore Foundation (Intel founder Moore) launched a large initiative called Emergent Phenomena in Quantum Systems (EPiQS). The Moore Experimental Investigator in Quantum Materials Awards, recently identified 19 scientists who will receive funding support for five years. Our group has own one of the Moore Experimental Investigator Awards (2014-2019).
	Moore Investigator Award Link
	Search & Discovery News: Topological Insulators "Exotic spin textures show up in diverse materials"
	U.S. DOE Physicists at work: World Year of Physics (2005) Hasan's experimental photoemission (Annus Mirabilis 1905 Einstein paper on photoelectric/photoemission effect) work featured in DOE's office of science.
	"New spectroscopy takes aim at an unsolved electronic mystery" Stanford University News, June 14, 2000
	"Alfred P. Sloan Research Fellowships" Fellowship Link
	====================================================================== M. Zahid Hasan named Fellow of the American Physical Society APS citation: "for the experimental discovery of three dimensional topological insulators". News link
	M.Shirley award for outstanding scientific achievement awarded to M. Zahid Hasan Citation: "for the discovery of topological order in the solid state and quantum Hall-like behavior without magnetic fields (bulk topological insulators)". Award link
	Science (Perspective/News): "How do you want that insulator?" (topological insulators)
	U.S. National Science Foundation Press Release : "Quantum Twist: Electrons Mimic Presence of Magnetic Field" Philip W. Anderson on topological materials and methods (NSF news (National Science Foundation))

Hasan Research Group

Laboratory for Topological Quantum Matter & Advanced Spectroscopy