Group Members
Research Publications Lab Facilities
Computation Platform
Collaborators
Internal Links
News
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"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 matter..." :

Prof. Hasan's Interview with NATURE (Homepage news, July 2017)

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

Prof. Hasan's Interview PhysicsWorld Multimedia

Princeton University named Professor Hasan to an endowed chair professorship:

Eugene Higgins Professor of Physics effective, 2017.

(Endowed Professorship) News at Princeton

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

International ICTP Conference on Weyl Fermions in Materials (Italy)

New Topological Materials: Berkeley Lab News

Princeton theory center workshop on Weyl Fermions in Topological Semimetals

Quantum Matter Summer School at IAS/Princeton Reading List

DFT-FP Theoretical Predictions and Topological Materials Discovery (at Hasan lab)

Beyond particle Physics (Nature Materials 2017) :

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

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

APS-Physics Meeting : Weyl Topological Semimetals: Theory and Experiment

Ilya Belopolski wins Kusaka Memomrial Prize in Physics (Princeton Univ), Congratulations Ilya!
Suyang Xu named in the global Highly-Cited-Researcher-List (2017); Congratulations Suyang !
Nasser Alidoust joins Rigetti Q. Computing (Berkeley), Goodluck with Quantum Computing Nasser!

NSF New Frontiers Workshop Talk (National Science Foundation):
"Theoretical & experimental discovery of Weyl, topo. nodal line & chiral anomaly materials"


(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"

Opening Science Talk (Physics-Next, APS-Physics): ..Quantum Fields to Condensed Matter

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

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

(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)

Miller Professorship Lecture at Miller Institute (UC-Berkeley)

(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)

Opening 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

Kavli KITP program on Topo. Insulators and Superconductors


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


"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)
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News (May-July, 2017):

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

Prof. Hasan delivers the Mott lecture in London :

2017 Sir Nevill Mott Lecture Series in Physics
(Started in 1996, previous lecturers include Petrashov, Houghton, Pendry, Wallace, Pashkin, Penrose, Anderson, Abrikosov, Leggett, Mansfield, Josephson).

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)
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Theoretical Prediction of Topological Hopf-link semimetals (2017)


DS

"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)

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News :

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

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

"New Topological States of Quantum Matter: Dirac, Weyl/TNL & Majorana Platforms"

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Talk:
KITP Program on Topological Insulators and Topological Superconductors

KITP Link

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

Link

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

Link

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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

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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)

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  List of topics/talks
 
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Education/Science Outreach : PDF
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New Topological Phases of Matter: Platform for emergent Dirac, Majorana & Weyl fermions (2016)
Colloquium at California Inst. of Technology (2016)
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"Genie out of the bottle": Topological Insulators (September, 2016):
Proceedings of National Academy of Sciences of the USA
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PhysicsWorld multimedia interview: "What is a Topological Metal? (2016)
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Prof. Hasan awarded a Visiting Miller Professorship by the Miller Institute for Basic Research at
the University of California at Berkeley
Berkeley Link

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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)

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Congratulations! Dr. Suyang Xu
"Discoveries of New Topological States of Matter Beyond Topo.Insulators" PhD Thesis(Princeton)


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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
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PhysicsWorld (2016)

Weyl semimetals, Fermi arcs and chiral anomaly
Invited Commentary at NATURE MATERIALS (cover story), November 2016
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" 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)
 
 
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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
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Some examples of our theoretical predictions can be found here

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"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
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Focus Issue on Topological Semimetals
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Old/Early (1972-88) topological concepts in condensed matter theory
Topology of Kosterlitz-Thouless & Haldane
Princeton media link
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Weyl semimetals discovered (Xu, Belopolski et.al., at LBNL)

Advanced Light Source; Lawrence Berkeley National Labortaory
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Princeton Physics News:
"Ilya Belopolski won the Harold W. Dodds Fellowship for his work on
Weyl fermion semimetals and quantum anomalies"

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2016 Web of Science Highly Cited Researchers Thomson Reuters
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2015 Thomson Reuters Most Influential Scientific Minds Thomson Reuters
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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

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Weyl fermions discovered

Lawrence Berkeley National Labortaory (U.S. DOE) Sci-HiLight link
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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

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Topological Insulator Spin-Texture Demonstrated

Stanford Synchrotron Laboratory, SLAC National Lab (U.S. DOE) link
Link
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"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
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"Theoretical & experimental discovery of Weyl fermion, topo. nodal line & chiral anomaly materials"
Lecture at Rutgers University
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"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)

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"New Forms of Matter: Weyl Fermions, Topo. nodal line fermion & new Majorana platforms"
Keynote Lecture, Rutherford - Appleton Laboratory, UK

Link
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Institute for Advanced Study Distinguished Lecture at HKUST
New Topological States of Matter (2015)


IAS Link
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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

 
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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)

 
 
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  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)
 
 
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Highly-Cited Researcher (top 1%): Thomson-Reuters (2014, 2015)
Journal publications in 2003-2013
News link
 
 


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"Discovery of single-Dirac-cone Topological Insulators"
ALS-SPECTRUM
Lawrence Berkeley National Laboratory
 
 


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"Helical Cooper Pairing in Superconducting Topological Insulators"
News link

Nature Physics

 
 


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New funding for quantum systems
News link


 
 
MOORE

Lawrence Berkeley National Laboratory News


 
 
MOORE

SLAC National Laboratory News

 
 
NbSe2
 
 
EPiQS Program award details

MOORE


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

 
 


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Search & Discovery News: Topological Insulators
"Exotic spin textures show up in diverse materials"


 
 


DOE


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.


 
 
DOE


"New spectroscopy takes aim at an unsolved electronic mystery"
Stanford University News, June 14, 2000


 
 
Sloan


"Alfred P. Sloan Research Fellowships"
Fellowship Link


 
 
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M. Zahid Hasan named Fellow of the American Physical Society

APS citation: "for the experimental discovery of three dimensional topological insulators".

News link
 
 
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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
 
 
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Science (Perspective/News):

"How do you want that insulator?" (topological insulators)


 
 
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News:

"Quantum Twist: Electrons Mimic Presence of Magnetic Field" (topological insulators)


 
 
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Science News:

"Fast Electrons Tie Quantum Knots" (topological insulators)


 
 
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Science News:

"Elusive particle shows up in semimetal"


 
 
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Nature Materials News:

"Weyl fermions: Massless yet real"


 
 
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ChemistryWorld News:

"Elusive fermion found at long last"


 
 
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News at Princeton:

"After 85-year search, massless particle with promise for next-generation electronics discovered"

News date: 16 July 2015

S.-Y. Xu et al., Science 349, 613 (2015)
Publication date: 16 July 2015, submitted on 15 Feb 2015

Also see: Phys. Rev. X 5, 031013 (2015)
Publication date: 31 July 2015, submitted on 15 July 2015
 
 
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Review/Perspective Articles:



Topological Insulators, Topological Dirac semimetals, Topological Crystalline Insulators, and Topological Kondo Insulators

M. Z. Hasan, S.-Y. Xu, M. Neupane

Book Chapter in
Topological Insulators, Fundamentals and Perspectives (John Wiley & Sons) (2015)


Topological Insulators, Helical Topological Superconductors and Weyl Fermion Semimetals

M. Z. Hasan, S.-Y. Xu and G. Bian

Phys. Scr. T164 014001 (2015)

Experimental Discoveries: Topological Surface States - A New Type of 2D Electrons Systems

M. Z. Hasan, S.-Y. Xu, D. Hsieh, L. Wray, Y. Xia

Book Chapter in
Topological Insulators (Elsevier/Oxford) (2013)


Topological Quantization in Topological Insulators

M. Z. Hasan

Physics 3, 62 (2010)

Three-Dimensional Topological Insulators

M. Z. Hasan and J. E. Moore

Ann. Rev. Cond. Mat. Phys 2, 55 (2011)

Topological Insulators

M. Z. Hasan and C. L. Kane

Rev. Mod. Phys 82, 3045 (2010)

Discovery of Weyl fermion semimetals and Topological Fermi arcs

M. Z. Hasan, S.-Y. Xu and I. Belopolski

(To be published) (2016)

Weyl semimetals, Fermi arcs and chiral anomaly
S. Jia, S.-Y. Xu, M. Z. Hasan
Nature Materials 15, 1140-1144 (2016) (Cover Story)


  DS