New topological semimetal candidate of nonsymmorphic PdSb2 with unique six-fold degenerate point
Guangcun Shan1,2(), Hai-Bin Gao3
1. School of Instrument Science and Opto-electronic Engineering & Institute of Quantum Sensing, Beihang University, Beijing 100083, China 2. Max Planck Institute for Chemical Physics of Solids, Nthnitzer Str. 40, D-01187 Dresden, Germany 3. Institute of Experimental Physics, Saarland University, 66123 Saarbrcken, Germany
Z. K. Liu, B. Zhou, Y. Zhang, Z. J. Wang, H. M. Weng, D. Prabhakaran, S.-K. Mo, Z. X. Shen, Z. Fang, X. Dai, Z. Hussain, and Y. L. Chen, Discovery of a threedimensional topological Dirac semimetal, Na3Bi, Science 343, 864 (2014) https://doi.org/10.1126/science.1245085
2
B. Bradlyn, J. Cano, Z. Wang, M. G. Vergniory, C. Felser, R. J. Cava, and B. A. Bernevig, Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals, Science 353(6299), aaf5037 (2016) https://doi.org/10.1126/science.aaf5037
3
Z. K. Liu, J. Jiang, B. Zhou, Z. J. Wang, Y. Zhang, H. M. Weng, D. Prabhakaran, S. K. Mo, H. Peng, P. Dudin, T. Kim, M. Hoesch, Z. Fang, X. Dai, Z. X. Shen, D. L. Feng, Z. Hussain, and Y. L. Chen, A stable three-dimensional topological Dirac semimetal Cd3As2, Nat. Mater. 13(7), 677 (2014) https://doi.org/10.1038/nmat3990
4
M. Neupane, S. Y. Xu, R. Sankar, N. Alidoust, G. Bian, C. Liu, I. Belopolski, T. R. Chang, H. T. Jeng, H. Lin, A. Bansil, F. Chou, and M. Z. Hasan, Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2, Nat. Comms. 5(1), 3786 (2014) https://doi.org/10.1038/ncomms4786
5
S. Y. Xu, C. Liu, S. K. Kushwaha, R. Sankar, J. W. Krizan, I. Belopolski, M. Neupane, G. Bian, N. Alidoust, T. R. Chang, H. T. Jeng, C. Y. Huang, W. F. Tsai, H. Lin, P. P. Shibayev, F. C. Chou, R. J. Cava, and M. Z. Hasan, Observation of Fermi arc surface states in a topological metal, Science 347(6219), 294 (2015) https://doi.org/10.1126/science.1256742
6
H. Weng, C. Fang, Z. Fang, B. A. Bernevig, and X. Dai, Weyl semimetal phase in noncentrosymmetric transitionmetal monophosphides, Phys. Rev. X 5(1), 011029 (2015) https://doi.org/10.1103/PhysRevX.5.011029
7
S. Y. Xu, I. Belopolski, N. Alidoust, M. Neupane, G. Bian, C. Zhang, R. Sankar, G. Chang, Z. Yuan, C.C. Lee, S. M. Huang, H. Zheng, J. Ma, D. S. Sanchez, B. Wang, A. Bansil, F. Chou, P. P. Shibayev, H. Lin, S. Jia, and M. Z. Hasan, Discovery of a Weyl fermion semimetal and topological Fermi arcs, Science 349(6248), 613 (2015) https://doi.org/10.1126/science.aaa9297
8
S. M. Huang, S.Y. Xu, I. Belopolski, C.C. Lee, G. Chang, B. K. Wang, N. Alidoust, G. Bian, M. Neupane, C. Zhang, S. Jia, A. Bansil, H. Lin, and M. Z. Hasan, A Weyl fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class, Nat. Commun. 6(1), 7373 (2015) https://doi.org/10.1038/ncomms8373
9
S. Y. Xu, N. Alidoust, I. Belopolski, Z. Yuan, G. Bian, T. R. Chang, H. Zheng, V. N. Strocov, D. S. Sanchez, G. Chang, C. Zhang, D. Mou, Y. Wu, L. Huang, C. C. Lee, S. M. Huang, B. K. Wang, A. Bansil, H. T. Jeng, T. Neupert, A. Kaminski, H. Lin, S. Jia, and M. Zahid Hasan, Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide, Nat. Phys. 11(9), 748 (2015) https://doi.org/10.1038/nphys3437
Z. C. Rao, H. Li, T. T. Zhang, S. J. Tian, C. H. Li, B. B. Fu, C. Y. Tang, L. Wang, Z. L. Li, W. H. Fan, J. J. Li, Y. B. Huang, Z. H. Liu, Y. W. Long, C. Fang, H. M. Weng, Y. G. Shi, H. C. Lei, Y. J. Sun, T. Qian, and H. Ding, Observation of unconventional chiral fermions with long Fermi arcs in CoSi, Nature 567, 496 (2019) https://doi.org/10.1038/s41586-019-1031-8
12
W. Gao, N. Hao, F. W. Zheng, W. Ning, M. Wu, X. Zhu, G. Zheng, J. Zhang, J. Lu, H. Zhang, C. Xi, J. Yang, H. Du, P. Zhang, Y. Zhang, and M. Tian, Extremely large magnetoresistance in a topological semimetal candidate pyrite PtBi2, Phys. Rev. Lett. 118(25), 256601 (2017) https://doi.org/10.1103/PhysRevLett.118.256601
13
R. Chapai, Y. Jia, W. A. Shelton, Roshan Nepal, M. Saghayezhian, J. F. DiTusa, E. W. Plummer, C. Jin, and R. Jin, Fermions and bosons in nonsymmorphic PdSb2 with sixfold degeneracy, Phys. Rev. B 99, 161110(R) (2019) https://doi.org/10.1103/PhysRevB.99.161110
14
A. B. Pippard, Magnetoresistance in Metals, Cambridge University Press, Cambridge, England, 1989
15
A. Narayanan, M. D. Watson, S. F. Blake, N. Bruyant, L. Drigo, Y. L. Chen, D. Prabhakaran, B. Yan, C. Felser, T. Kong, P. C. Canfield, and A. I. Coldea, Linear magnetoresistance caused by mobility fluctuations in n-doped Cd3As2, Phys. Rev. Lett. 114(11), 117201 (2015) https://doi.org/10.1103/PhysRevLett.114.117201
16
B. Q. Lv, Z. L. Feng, Q. N. Xu, X. Gao, J. Z. Ma, L. Y. Kong, P. Richard, Y. B. Huang, V. N. Strocov, C. Fang, H. M. Weng, Y. G. Shi, T. Qian, and H. Ding, Observation of three-component fermions in the topological semimetal molybdenum phosphide, Nature 546(7660), 627 (2017) https://doi.org/10.1038/nature22390
17
Y. P. Li, Z. Wang, P. S. Li, X. J. Yang, Z. X. Shen, F. Sheng, X. D. Li, Y. H. Lu, Y. Zheng, and Z.-A. Xu, Negative magnetoresistance in Weyl semimetals NbAs and NbP: Intrinsic chiral anomaly and extrinsic effects, Front. Phys. 12(3), 127205 (2017) https://doi.org/10.1007/s11467-016-0636-8
