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Topological Nodal-Line Fermions (New Fermions)

Some examples of our theoretical predictions can be found here

Discovery of Topological Nodal-Line States of Matter
(Key Developments in Physics: 2Physics, 2016)


KITP talk on topological superconductivity and Majorana platform

"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

 
 
Topological Nodal-Line Fermions in Spin-Orbit Metal PbTaSe2
G. Bian, T.-R. Chang, R. Sankar, S.-Y. Xu, H. Zheng, T. Neupert, C.-K. Chiu, S.-M. Huang, G. Chang, I. Belopolski, D. S. Sanchez, M. Neupane, N. Alidoust, C. Liu, B. Wang, H.-T. Jeng, A. Bansil, F. Chou, H. Lin, and M. Z. Hasan
Nature Commun. 7:10556 (2016)

Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2

G. Bian,T.-R. Chang, H. Zheng, S. Velury, S.-Y. Xu, T. Neupert, C.-K. Chiu, D. S. Sanchez, I. Belopolski, N. Alidoust, P.-J. Chen, G. Chang, A. Bansil, H.-T. Jeng, H. Lin, and M. Z. Hasan
Phys. Rev. B 93, 121113(R) (2016).


Observation of topological nodal fermion semimetal phase in ZrSiS

M. Neupane, I. Belopolski, M. M. Hosen, D. S. Sanchez, R. Sankar, M. Szlawska, S.-Y. Xu, K. Dimitri, N. Dhakal, P. Maldonado, P. M. Oppeneer, D. Kaczorowski, F. Chou, M. Zahid Hasan, and T. Durakiewicz
Phys. Rev. B 93, 201104(R) (2016).

Room-temperature magnetic topological Weyl fermion and nodal line semimetal states in half-metallic Heusler Co2TiX (X=Si, Ge, or Sn)
G. Chang, S.-Y. Xu, H. Zheng, B. Singh, C.-H. Hsu, I. Belopolski, D. S. Sanchez, G. Bian, N. Alidoust, H. Lin, M. Z. Hasan
Scientific Reports 6, 38839 (2016)

 
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Drumhead Surface States and Topological Nodal-Line Fermions in TlTaSe2

G. Bian,T.-R. Chang, H. Zheng, S. Velury, S.-Y. Xu, T. Neupert, C.-K. Chiu, D. S. Sanchez, I. Belopolski, N. Alidoust, P.-J. Chen, G. Chang, A. Bansil, H.-T. Jeng, H. Lin, and M. Z. Hasan
Phys. Rev. B 93, 121113(R) (2016).
 
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Room-temperature magnetic topological Weyl fermion and nodal line semimetal states in half-metallic Heusler Co2TiX (X=Si, Ge, or Sn).
Published in Guoqing Chang, Su-Yang Xu, Hao Zheng, Bahadur Singh, Chuang-Han Hsu, Guang Bian, Nasser Alidoust, Ilya Belopolski, Daniel S. Sanchez, Songtian Zhang, Hsin Lin & M. Zahid Hasan Scientific Reports 6, 38839 (2016).