M. Zahid Hasan

Professor of Physics
Office Phone
321 Jadwin Hall



Eugene Higgins Professor of Physics



Search for (unexpected) New Physics; Quantum Matter with Exotic Properties  

Unexpected Discovery: https://physics.princeton.edu/zahidhasangroup/RHDickeTalk_2021.pdf 

Theory & Experiments on Quantum Topology; QFT models; First-Principles (FP/TBT/DFT) Theory, Theoretical Prediction and Experimental Discovery   



Innovative Applications of spectroscopy to probe Topological Quantum Matter:



Light-Matter-Field interaction, Novel spectroscopic methods, Quantum control 

Utrafast & Coherent phenomena; Quantum many-body control methods & engineering 

Emergent Dirac, Majorana, Weyl and QFT phenomena and Quantum Info Science (QIS) funded by the National Quantum Initiative (NQI) 

Topological Magnets, Kagome lattice novel states, CDW/Higgs and Exotic Superconductors  

Room-temperature macroscopic quantum phenomena – fundamental science & applications; 

Engineered hetero-structures and artificial quantum matter for novel devices 

Natural and Engineered Materials for Energy, Information, Environment, and Sustainability


Hasan lab is focused (funded to work) on the conceptualization, design, search and discover, theoretical prediction, experimental discovery and development of new physics of quantum matter. The Lab research is focused on  exploring novel physics of quantum-many-body emergence, condensates, quantum coherence, and topological (weakly or strongly interacting, entangled) emergence by combining novel spectroscopy, microscopy and transport methods.

Selected Publications

Selected Review Articles (Invited):

“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)

Weyl Semimetal patent: United States Patent # 10214797.


“New type of Weyl semimetal with quadratic double Weyl fermions” 

S.-M. Huang, S.-Y. Xu, I. Belopolski et.al.,  

Proceedings of National Academy of Sciences 113, 1180 (2015). 


“Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet” 

I. Belopolski, D. Sanchez,  G. Chang et.al., 

Science 365, 1278-1281 (2019) 


“Discovery of Lorentz-violating Weyl fermion semimetal state in LaAlGe materials” 

S-Y. Xu, N. Alidoust, G. Chang et.al.,  

Science Adv 3, e1603266 (2017) 


Discovery of topological chiral crystals with helicoid arc quantum states  

D. Sanchez, T. Cochran, I. Belopolski  et.al.,   


 Nature 567, 500–505 (2019) 


"Topological Quantum Properties of Weyl Chiral Crystals" 

G. Chang, B. Wieder et. al,  

Nature Materials 17, 978-985 (2018)


“Discovery of Charge Order and Corresponding Edge State in a Kagome Magnet” 

J-X. Yin, Y.-X. Jiang, X. Teng et.al.,  

Phys. Rev. Lett. 129, 166401 (2022) 


"Discovery of Conjoined Charge Density Waves in the Kagome Superconductor CsV3Sb5" 

H. Li, G. Fabbris, A. Said et.al.,  

Nature Commun (2022) 


“Theoretical prediction of magnetic Weyl semimetal states in the R-Al-X family of compounds (R=rare earth, Al, X=Si, Ge)”  

 G. Chang, B. Singh, Su-Yang Xu, Guang Bian et.al.,  

 https://arxiv.org/abs/1604.02124  (2016) [Magnetic Weyl Semimetals, 2016] 


“Room-temperature magnetic Weyl semimetal and nodal line semimetal states in Co2TiX (X=Si, Ge, or Sn)”  

 G. Chang, S.-Y. Xu, H. Zheng et.al.,  

 https://arxiv.org/abs/1603.01255 (2016) [Magnetic Weyl Semimetals, 2016] 


“Discovery of charge density wave in a correlated kagome lattice antiferromagnet” 

X. Teng, L. Chen, F. Ye et.al.,  

NATURE 609, 490-495 (2022) 


“Time-reversal symmetry-breaking charge order in a kagome superconductor” 

C. Mielke, D. Das, Jia-Xin Yin et.al.,  

NATURE 602, 245 (2022)  


“Evidence of a room-temperature quantum spin Hall edge state in a higher-order topological insulator” 

N. Shumiya, M. Shafayat Hossain, Jia-Xin Yin et.al.,  



A three-dimensional magnetic topological phase (the first “Topological Magnet” in three dimensions Co2MnGa) 

I. Belopolski, D. Sanchez, Guoqing Chang et.al.,  

https://arxiv.org/abs/1712.09992 (2017) 


 “Observation of Fermi Arc Surface States in a Topological Metal” 

  S.-Y. Xu, C. Liu et.al.,  

Science 347, 294-298 (2015). 


“Discovery of a Weyl semimetal state with Fermi arcs in niobium arsenide”  

 S.-Y. Xu, N. Alidoust et.al.,  

 Nature Physics 11, 748-754 (2015)


“Criteria for Directly Detecting (Proving) Topological Fermi Arcs in Weyl Semimetals”  

 I. Belopolski, S.-Y. Xu, D. S. Sanchez et.al.,  

 Phys. Rev. Lett. 116, 066802 (2016) 


“Discovery of a new type of topological Weyl fermion semimetal state in MoxWTe2 materials” 

I. Belopolski, D. Sanchez, Y. Ishida et.al.,   

Nature Commun. 7, 13643  (2016) 


“Discovery of a Weyl Fermion semimetal and topological Fermi arcs”  

S.-Y. Xu, I. Belopolski, N. Alidoust et.al.,  

Science 349, 613-617 (2015). 


[Route to Dirac Semimetal in 3D] Topological phase transition and texture inversion in a tunable insulator  

S.-Y. Xu, Y. Xia, L.A. Wray, et al.; 

Science 332, 560 (2011). 


A Weyl Fermion semimetal with surface Fermi arcs in the transition metal mono-pnictide TaAs class.  

S.-M. Huang, Su-Yang Xu, I. Belopolski et.al., 
Nature Commun. 6:7373 (2015) (submitted 2014) 


[Weyl Semimetals] Topological electronic structure and Weyl semimetal in the TlBiSe class 

B. Singh, A. Sharma, H. Lin, M. Z. Hasan et.al.,   

Physical Review B 86, 115208 (2012) which builds upon our earlier 2011 work on topological phase transition route to Dirac topological semimetals by S.-Y. Xu et.al., SCIENCE 332, 560 (2011).


"Discovery of Topological Magnets in 2D and 3D" 

M. Z. Hasan et.al., 

https://absuploads.aps.org/presentation.cfm?pid=14503(link is external) 

Robert H. Dicke symposium  

talk by M. Z. Hasan   

https://physics.princeton.edu//zahidhasangroup/RHDickeTalk_2021.pdf(link is external) 

Sir Nevill Mott (Nobel Laureate ’77) Lecture Series  

https://www.lboro.ac.uk/news-events/news/2017/may/sir-nevill-mott-lecture/(link is external)  

Moore Foundation symposium  


“Observation of a linked loop quantum state in a topological magnet”  

I. Belopolski, G. Chang, T. Cochran etal.,   

NATURE 604, 647-652 (2022) 



“Kagome superconductors AV3Sb5” 

K. Jiang et.al.,  

https://arxiv.org/abs/2109.10809 (2021) 

“Charge-order and Superconductivity in Kagome lattice materials” 

T. Neupert, M. Denner, J. Yin, R. Thomale & M. Z. Hasan 

Nature Physics (2021) 


“Discovery of unconventional chiral charge order in kagome superconductor KV3Sb5” 

 Y-X. Jiang, J-X. Yin, M. Denner et.al., 

 https://arxiv.org/abs/2012.15709 (2020) 


“Time-reversal symmetry-breaking charge order in a kagome superconductor”  

 C. Mielke III, D. Das, Jia-Xin Yin et.al.,  

 NATURE 602, 245-250 (2022) 


 Discovery of a quantum limit Chern magnet TbMn6Sn6 

 J-X. Yin, W. Ma, T. A. Cochran et.al.,  

 NATURE 583, 533-536 (2020) 


“Topological chiral crystals with helicoid arc quantum states”   

D. Sanchez, T. Cochran, I. Belopolski, X. Xu et.al.,    

NATURE 567, 500–505 (2019)  


“Observation of a linked loop quantum state in a topological magnet”  

I. Belopolski, G. Chang, T. Cochran etal.,   

NATURE 604, 647-652 (2022) 


"Weyl, Dirac and high-fold chiral fermions in topological quantum matter"

M. Z. Hasan, G. Chang, G. Bian, S.Y. Xu & J.X. Yi 

Nature Reviews Materials 6, 784-803 (2021)


"Probing topological matter with scanning tunnelling microscopy (STM)"

J.X. Yin, S. Pan and M.Z. Hasan

Nature Reviews Physics 3, 249-263 (2021)


“Weyl Semimetals, Fermi Arcs and Chiral Anomalies”

S. Jia, S.-Y. Xu and M. Z. Hasan

Nature Materials 15, 1140–1144 (2016)

Gordon Moore Symposium (EPIQS) 


S.N. Bose seminar (Public Lecture)  



"Topological Quantum Properties of Chiral Crystals"

G. Chang, M.Z. Hasan et.al.,

Nature Materials 17, 978-985 (2018)


“Topological Insulators, Topological Superconductors and Weyl Semimetals” 

M. Z. Hasan, S.-Y. Xu and G. Bian 

Phys. Scr. T164 014001 (2015) 

Miller Professorship Lecture at UC Berkeley  



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

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

(Review) Book Chapter in Topological Insulators:Fundamentals and Perspectives (2015) 

Edited by F. Ortmann, S. Roche & S. Valenzuela (John Wiley & Sons)


“Topological Surface States - A New Type of 2D Electrons Systems”

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

Book Chapter (Review) in “Topological Insulators” (2013) (Elsevier)


“Three-Dimensional Topological Insulators”

M. Z. Hasan and J. E. Moore

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

Theoretical Prediction of Bi2Se3 family of Topo.Insulators : Y. Xia et.al., arXiv:0908.3513 (2009)


“Topological Quantization in Topological Insulators”

M. Zahid Hasan

Physics 3, 62 (2010) 


“Topological Insulators”

M. Zahid Hasan and Charles L. Kane

Review of Modern Physics 82, 3045 (2010) 


MERLIN - A meV Resolution Beamline at the Advanced Light Source (Berkeley Lab)

M.Z. Hasan with MERLIN collaboration: R. Reininger, Y.-D. Chuang, et al.; 

American Institute of Physics Conference Proceedings 879, 509 (2007).


Design of an elliptically bent refocus mirror for the MERLIN beamline at the Advanced Light Source  (Berkeley Lab)

M.Z. Hasan with MERLIN collaboration: N. Kelez, Y.-D. Chuang et al.; 

Nuclear Instruments and Methods in Physics Research A 582, 135 (2007).


Berkeley Lab News: 

“How X-rays Pushed Topological Matter Research Over the Top”



SLAC/Standford Lab News:

"Discovery of Topological Weyl Fermion Lines and Drumhead Surface States in a Room Temperature Magnet"



Superconductivity and Magnetism in Topological or Dirac Matter

Observation of topological order in a superconducting doped topological insulator. 

L. A. Wray, Y. Xia, et al.;

Nature Physics 6, 855 (2010).


A topological insulator surface under strong Coulomb, magnetic and disorder perturbations.

L. A. Wray, S.-Y. Xu, Y. Xia, et al.;

Nature Physics 7, 32 (2011).


Hedgehog spin texture and Berry's phase tuning in a magnetic topological insulator. 

S.-Y. Xu, M. Neupane et al.; 

Nature Physics 8, 616 (2012).


Momentum-space imaging of Cooper pairing in a half-Dirac-gas topological superconductor. 

S.-Y. Xu, N. Alidoust, I. Belopolski et.al, 

Nature Physics 10, 943 (2014).


Topological Dirac surface states and superconducting pairing correlations in PbTaSe2 

T.-R. Chang, P.-J. Chen, G. Bian et.al., 

Phys. Rev. B 93, 245130 (2016).


Discovery of Lorentz-violating Weyl fermions

S.-Y. Xu, N. Alidoust, I. Belopolski et.al, 

Science Adv.  3, e1603266 (2017).


Giant and anisotropic many-body spin–orbit tunability in a correlated kagome magnet 

J.-X. Yin, S. S. Zhang et.al., 

Nature 562, 91–95 (2018).


Chiral Majorana Fermion Modes on the surface of superconducting topo. Insulators 

C.-K. Chiu, G. Bian et.al., 

Europhysics Letters 123, 47005 (2018).


Discovery of Weyl lines and drumhead surface states in a room temperature magnet 

I. Belopolski, K. Manna et.al., 

Science 365, 1278-1281 (2019).


Field-free platform for Majorana-like zero mode in superconductors with a topo. surface state

S. S. Zhang, J.-X. Yin et.al., 

Phys. Rev. B 101, 100507(R) (2020).


“Princeton scientists discover topological crystals exhibiting exotic quantum effects”



“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)

Weyl Semimetal patent: United States Patent # 10214797.

Theoretical Prediction of TaAs family : S.-M. Huang et.al., Nature Commun. 6:7373 subm. (2014)


“Topological Insulators” (and Superconductors)

M. Zahid Hasan and Charles L. Kane

Reviews of Modern Physics 82, 3045 (2010) 

Theoretical Prediction of Bi2Se3 family of Topo.Insulators : Y. Xia et.al., arXiv:0908.3513 (2009)


Recent Research Projects:



Topological Superconductors and Majorana platforms:



Exotic (strongly correlated) superconductivity and the fate of P.W. Anderson theorem :