Topological chiral crystals with helicoid-arc quantum states

Sanchez, Daniel S.; Belopolski, Ilya; Cochran, Tyler A.; Xu, Xitong; Yin, Jia-Xin; Chang, Guoqing; Xie, Weiwei; Manna, Kaustuv; Süß, Vicky; Huang, Cheng-Yi; Alidoust, Nasser; Multer, Daniel; Zhang, Songtian S.; Shumiya, Nana; Wang, Xirui; Wang, Guang-Qiang; Chang, Tay-Rong; Felser, Claudia; Xu, Su-Yang; Jia, Shuang; Lin, Hsin; Hasan, M. Zahid

doi:10.1038/s41586-019-1037-2

Title: Topological chiral crystals with helicoid-arc quantum states

Journal Article · Wed Mar 20 00:00:00 EDT 2019 · Nature (London)

DOI:https://doi.org/10.1038/s41586-019-1037-2· OSTI ID:1632127

Sanchez, Daniel S. ^[1]; Belopolski, Ilya ^[1]; Cochran, Tyler A. ^[1]; Xu, Xitong ^[2]; Yin, Jia-Xin ^[1]; Chang, Guoqing ^[1]; Xie, Weiwei ^[3]; Manna, Kaustuv ^[4]; Süß, Vicky ^[4]; Huang, Cheng-Yi ^[5]; Alidoust, Nasser ^[6]; Multer, Daniel ^[1]; Zhang, Songtian S. ^[1]; Shumiya, Nana ^[1]; Wang, Xirui ^[2]; Wang, Guang-Qiang ^[2]; Chang, Tay-Rong ^[7]; Felser, Claudia ^[4]; Xu, Su-Yang ^[1]; Jia, Shuang ^[8] more »

Princeton Univ., NJ (United States). Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7)
Peking Univ., Beijing (China). International Center for Quantum Materials
Louisiana State Univ., Baton Rouge, LA (United States)
Max Planck Institute for Chemical Physics of Solids, Dresden (Germany)
Academia Sinica, Taipei (Taiwan). Institute of Physics
Princeton Univ., NJ (United States). Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7); Rigetti Quantum Computing, Berkeley, CA (United States)
National Cheng Kung University, Tainan (Taiwan)
Peking Univ., Beijing (China). International Center for Quantum Materials; Collaborative Innovation Center of Quantum Matter, Beijing (China); University of the Chinese Academy of Science, Beijing (China). CAS Center for Excellence in Topological Quantum Computation
Princeton Univ., NJ (United States). Laboratory for Topological Quantum Matter and Advanced Spectroscopy (B7); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

The quantum behaviour of electrons in materials is the foundation of modern electronics and information technology, and quantum materials with topological electronic and optical properties are essential for realizing quantized electronic responses that can be used for next generation technology. Here we report the first observation of topological quantum properties of chiral crystals in the RhSi family. We find that this material class hosts a quantum phase of matter that exhibits nearly ideal topological surface properties originating from the crystals’ structural chirality. Electrons on the surface of these crystals show a highly unusual helicoid fermionic structure that spirals around two high-symmetry momenta, indicating electronic topological chirality. The existence of bulk multiply degenerate band fermions is guaranteed by the crystal symmetries; however, to determine the topological invariant or charge in these chiral crystals, it is essential to identify and study the helicoid topology of the arc states. The helicoid arcs that we observe on the surface characterize the topological charges of ±2, which arise from bulk higher-spin chiral fermions. These topological conductors exhibit giant Fermi arcs of maximum length (π), which are orders of magnitude larger than those found in known chiral Weyl fermion semimetals. Here, our results demonstrate an electronic topological state of matter on structurally chiral crystals featuring helicoid-arc quantum states. Such exotic multifold chiral fermion semimetal states could be used to detect a quantized photogalvanic optical response, the chiral magnetic effect and other optoelectronic phenomena predicted for this class of materials.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China; Chinese Academy of Science; Academia Sinica, Taiwan; Ministry of Science and Technology (MOST) in Taiwan; National Cheng Kung University, Taiwan; National Center for Theoretical Sciences (NCTS), Taiwan

Grant/Contract Number:: AC02-05CH11231; FG02-05ER46200; XDPB08-1; 291472

OSTI ID:: 1632127

Journal Information:: Nature (London), Vol. 567, Issue 7749; ISSN 0028-0836

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 183 works

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References (62)

Criteria for Directly Detecting Topological Fermi Arcs in Weyl Semimetals Belopolski, Ilya; Xu, Su-Yang; Sanchez, Daniel S. Physical Review Letters, Vol. 116, Issue 6 https://doi.org/10.1103/PhysRevLett.116.066802	journal	February 2016
Generalized Gradient Approximation Made Simple Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868 https://doi.org/10.1103/PhysRevLett.77.3865	journal	October 1996
Filling constraints for spin-orbit coupled insulators in symmorphic and nonsymmorphic crystals Watanabe, Haruki; Po, Hoi Chun; Vishwanath, Ashvin Proceedings of the National Academy of Sciences, Vol. 112, Issue 47 https://doi.org/10.1073/pnas.1514665112	journal	November 2015
Topological insulators and superconductors Qi, Xiao-Liang; Zhang, Shou-Cheng Reviews of Modern Physics, Vol. 83, Issue 4 https://doi.org/10.1103/RevModPhys.83.1057	journal	October 2011
Topological quantum properties of chiral crystals Chang, Guoqing; Wieder, Benjamin J.; Schindler, Frank Nature Publishing Group https://doi.org/10.5167/uzh-158525	text	January 2018
Weyl semimetals, Fermi arcs and chiral anomalies Jia, Shuang; Xu, Su-Yang; Hasan, M. Zahid Nature Materials, Vol. 15, Issue 11 https://doi.org/10.1038/nmat4787	journal	October 2016
Single crystal investigation of the new phase Er0.85Co4.31Si and of CoSi Demchenko, Pavlo; KoŃCzyk, Joanna; Bodak, Oksana Chemistry of Metals and Alloys, Vol. 1, Issue 1 https://doi.org/10.30970/cma1.0024	journal	January 2008
Ultraquantum magnetoresistance in the Kramers-Weyl semimetal candidate $β {− Ag}_{2} Se$ Zhang, Cheng-Long; Schindler, Frank; Liu, Haiwen Physical Review B, Vol. 96, Issue 16 https://doi.org/10.1103/PhysRevB.96.165148	journal	October 2017
Weyl Metals Burkov, A. A. Annual Review of Condensed Matter Physics, Vol. 9, Issue 1 https://doi.org/10.1146/annurev-conmatphys-033117-054129	journal	March 2018
Topological Materials: Weyl Semimetals Yan, Binghai; Felser, Claudia Annual Review of Condensed Matter Physics, Vol. 8, Issue 1 https://doi.org/10.1146/annurev-conmatphys-031016-025458	journal	March 2017
From ultrasoft pseudopotentials to the projector augmented-wave method Kresse, G.; Joubert, D. Physical Review B, Vol. 59, Issue 3, p. 1758-1775 https://doi.org/10.1103/PhysRevB.59.1758	journal	January 1999
Weyl semimetal with broken time reversal and inversion symmetries Zyuzin, A. A.; Wu, Si; Burkov, A. A. Physical Review B, Vol. 85, Issue 16 https://doi.org/10.1103/PhysRevB.85.165110	journal	April 2012
Existence of bulk chiral fermions and crystal symmetry Mañes, J. L. Physical Review B, Vol. 85, Issue 15 https://doi.org/10.1103/PhysRevB.85.155118	journal	April 2012
Experimental observation of topological Fermi arcs in type-II Weyl semimetal MoTe2 Deng, Ke; Wan, Guoliang; Deng, Peng Nature Physics, Vol. 12, Issue 12 https://doi.org/10.1038/nphys3871	journal	September 2016
Chern Semimetal and the Quantized Anomalous Hall Effect in ${HgCr}_{2} {Se}_{4}$ Xu, Gang; Weng, Hongming; Wang, Zhijun Physical Review Letters, Vol. 107, Issue 18 https://doi.org/10.1103/PhysRevLett.107.186806	journal	October 2011
Signatures of the Adler–Bell–Jackiw chiral anomaly in a Weyl fermion semimetal Zhang, Cheng-Long; Xu, Su-Yang; Belopolski, Ilya Nature Communications, Vol. 7, Issue 1 https://doi.org/10.1038/ncomms10735	journal	February 2016
Ultraquantum magnetoresistance in the Kramers-Weyl semimetal candidate $\beta− Ag_2 Se$ Zhang, Cheng-Long; Schindler, Frank; Liu, Haiwen American Physical Society https://doi.org/10.5167/uzh-144076	text	January 2017
Dirac Fermions in Solids: From High-T _c Cuprates and Graphene to Topological Insulators and Weyl Semimetals Vafek, Oskar; Vishwanath, Ashvin Annual Review of Condensed Matter Physics, Vol. 5, Issue 1 https://doi.org/10.1146/annurev-conmatphys-031113-133841	journal	March 2014
Elektron und gravitation. I Weyl, von Hermann Surveys in High Energy Physics, Vol. 5, Issue 3 https://doi.org/10.1080/01422418608228774	journal	November 1986
Chirality meets topology Shekhar, Chandra Nature Materials, Vol. 17, Issue 11 https://doi.org/10.1038/s41563-018-0210-6	journal	October 2018
The strange topology that is reshaping physics Castelvecchi, Davide Nature, Vol. 547, Issue 7663 https://doi.org/10.1038/547272a	journal	July 2017
Unconventional Chiral Fermions and Large Topological Fermi Arcs in RhSi Chang, Guoqing; Xu, Su-Yang; Wieder, Benjamin J. Physical Review Letters, Vol. 119, Issue 20 https://doi.org/10.1103/PhysRevLett.119.206401	journal	November 2017
Discovery of Weyl Fermion Semimetals and Topological Fermi Arc States Hasan, M. Zahid; Xu, Su-Yang; Belopolski, Ilya Annual Review of Condensed Matter Physics, Vol. 8, Issue 1 https://doi.org/10.1146/annurev-conmatphys-031016-025225	journal	March 2017
Multiple Types of Topological Fermions in Transition Metal Silicides Tang, Peizhe; Zhou, Quan; Zhang, Shou-Cheng Physical Review Letters, Vol. 119, Issue 20 https://doi.org/10.1103/PhysRevLett.119.206402	journal	November 2017
Topological semimetals with helicoid surface states Fang, Chen; Lu, Ling; Liu, Junwei Nature Physics, Vol. 12, Issue 10 https://doi.org/10.1038/nphys3782	journal	June 2016
Topological insulators, topological superconductors and Weyl fermion semimetals: discoveries, perspectives and outlooks Hasan, M. Zahid; Xu, Su-Yang; Bian, Guang Physica Scripta, Vol. T164 https://doi.org/10.1088/0031-8949/2015/T164/014001	journal	September 2015
Giant and anisotropic many-body spin–orbit tunability in a strongly correlated kagome magnet Yin, Jia-Xin; Zhang, Songtian S.; Li, Hang Nature, Vol. 562, Issue 7725 https://doi.org/10.1038/s41586-018-0502-7	journal	September 2018
Spectroscopic evidence for a type II Weyl semimetallic state in MoTe2 Huang, Lunan; McCormick, Timothy M.; Ochi, Masayuki Nature Materials, Vol. 15, Issue 11 https://doi.org/10.1038/nmat4685	journal	July 2016
Topological quantum properties of chiral crystals Chang, Guoqing; Wieder, Benjamin J.; Schindler, Frank Nature Materials, Vol. 17, Issue 11 https://doi.org/10.1038/s41563-018-0169-3	journal	October 2018
Fermi arc electronic structure and Chern numbers in the type-II Weyl semimetal candidate ${Mo}_{x} W_{1 - x} {Te}_{2}$ Belopolski, Ilya; Xu, Su-Yang; Ishida, Yukiaki Physical Review B, Vol. 94, Issue 8 https://doi.org/10.1103/PhysRevB.94.085127	journal	August 2016
Type-II Weyl semimetals Soluyanov, Alexey A.; Gresch, Dominik; Wang, Zhijun Nature, Vol. 527, Issue 7579 https://doi.org/10.1038/nature15768	journal	November 2015
A short history of SHELX Sheldrick, George M. Acta Crystallographica Section A Foundations of Crystallography, Vol. 64, Issue 1, p. 112-122 https://doi.org/10.1107/S0108767307043930	journal	December 2007
Colloquium: Topological insulators Hasan, M. Z.; Kane, C. L. Reviews of Modern Physics, Vol. 82, Issue 4, p. 3045-3067 https://doi.org/10.1103/RevModPhys.82.3045	journal	November 2010
Elektron und Gravitation. I Weyl, Hermann Zeitschrift f�r Physik, Vol. 56, Issue 5-6 https://doi.org/10.1007/BF01339504	journal	May 1929
The physics of quantum materials Keimer, B.; Moore, J. E. Nature Physics, Vol. 13, Issue 11 https://doi.org/10.1038/nphys4302	journal	October 2017
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set Kresse, G.; Furthmüller, J. Physical Review B, Vol. 54, Issue 16, p. 11169-11186 https://doi.org/10.1103/PhysRevB.54.11169	journal	October 1996
Weyl Semimetal in a Topological Insulator Multilayer Burkov, A. A.; Balents, Leon Physical Review Letters, Vol. 107, Issue 12 https://doi.org/10.1103/PhysRevLett.107.127205	journal	September 2011
Discovery of a Weyl fermion semimetal and topological Fermi arcs Xu, S. -Y.; Belopolski, I.; Alidoust, N. Science, Vol. 349, Issue 6248 https://doi.org/10.1126/science.aaa9297	journal	July 2015
Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase Murakami, Shuichi New Journal of Physics, Vol. 10, Issue 2 https://doi.org/10.1088/1367-2630/10/2/029802	journal	February 2008
The Adler-Bell-Jackiw anomaly and Weyl fermions in a crystal Nielsen, H. B.; Ninomiya, Masao Physics Letters B, Vol. 130, Issue 6 https://doi.org/10.1016/0370-2693(83)91529-0	journal	November 1983
Quantized circular photogalvanic effect in Weyl semimetals de Juan, Fernando; Grushin, Adolfo G.; Morimoto, Takahiro Nature Communications, Vol. 8, Issue 1 https://doi.org/10.1038/ncomms15995	journal	July 2017
Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets Chen, Ruyi; Cui, Qirui; Liao, Liyang Nature Communications, Vol. 12, Issue 1 https://doi.org/10.1038/s41467-021-23414-3	journal	May 2021
Observation of Fermi arcs in the type-II Weyl semimetal candidate ${WTe}_{2}$ Wu, Yun; Mou, Daixiang; Jo, Na Hyun Physical Review B, Vol. 94, Issue 12 https://doi.org/10.1103/PhysRevB.94.121113	journal	September 2016
Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals Bradlyn, Barry; Cano, Jennifer; Wang, Zhijun Science, Vol. 353, Issue 6299 https://doi.org/10.1126/science.aaf5037	journal	July 2016
Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase New Journal of Physics, Vol. 9, Issue 9 https://doi.org/10.1088/1367-2630/9/9/356	journal	September 2007
Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates Wan, Xiangang; Turner, Ari M.; Vishwanath, Ashvin Physical Review B, Vol. 83, Issue 20 https://doi.org/10.1103/PhysRevB.83.205101	journal	May 2011
Spin-orbit semimetals in the layer groups Wieder, Benjamin J.; Kane, C. L. Physical Review B, Vol. 94, Issue 15 https://doi.org/10.1103/PhysRevB.94.155108	journal	October 2016
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class Huang, Shin-Ming; Xu, Su-Yang; Belopolski, Ilya Nature Communications, Vol. 6, Issue 1 https://doi.org/10.1038/ncomms8373	journal	June 2015
Weyl Semimetal in a Topological Insulator Multilayer Burkov, A. A.; Balents, Leon arXiv https://doi.org/10.48550/arxiv.1105.5138	text	January 2011
Weyl semimetal with broken time reversal and inversion symmetries Zyuzin, A. A.; Wu, Si; Burkov, A. A. arXiv https://doi.org/10.48550/arxiv.1201.3624	text	January 2012
Dirac Fermions in Solids - from High Tc cuprates and Graphene to Topological Insulators and Weyl Semimetals Vafek, Oskar; Vishwanath, Ashvin arXiv https://doi.org/10.48550/arxiv.1306.2272	text	January 2013
Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs Xu, Su-Yang; Belopolski, Ilya; Alidoust, Nasser arXiv https://doi.org/10.48550/arxiv.1502.03807	text	January 2015
Type-II Weyl Semimetals Soluyanov, Alexey A.; Gresch, Dominik; Wang, Zhijun arXiv https://doi.org/10.48550/arxiv.1507.01603	text	January 2015
Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal Zhang, Chenglong; Xu, Su-Yang; Belopolski, Ilya arXiv https://doi.org/10.48550/arxiv.1601.04208	text	January 2016
Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals Bradlyn, Barry; Cano, Jennifer; Wang, Zhijun arXiv https://doi.org/10.48550/arxiv.1603.03093	text	January 2016
Spectroscopic evidence for type II Weyl semimetal state in MoTe2 Huang, Lunan; McCormick, Timothy M.; Ochi, Masayuki arXiv https://doi.org/10.48550/arxiv.1603.06482	text	January 2016
Spin-Orbit Semimetals in the Layer Groups Wieder, Benjamin J.; Kane, C. L. arXiv https://doi.org/10.48550/arxiv.1604.08630	text	January 2016
Topological Materials: Weyl Semimetals Yan, Binghai; Felser, Claudia arXiv https://doi.org/10.48550/arxiv.1611.04182	text	January 2016
Discovery of Weyl fermion semimetals and topological Fermi arc states Hasan, M. Zahid; Xu, Su-Yang; Belopolski, Ilya arXiv https://doi.org/10.48550/arxiv.1702.07310	text	January 2017
Weyl Metals Burkov, A. A. arXiv https://doi.org/10.48550/arxiv.1704.06660	text	January 2017
Multiple types of topological fermions in transition metal silicides Tang, Peizhe; Zhou, Quan; Zhang, Shou-Cheng arXiv https://doi.org/10.48550/arxiv.1706.03817	text	January 2017
Giant and anisotropic many-body spin-orbit tunability in a strongly correlated kagome magnet Yin, Jia-Xin; Zhang, Songtian S.; Li, Hang arXiv https://doi.org/10.48550/arxiv.1810.00218	text	January 2018

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