A magnetic topological semimetal Sr1−yMn1−zSb2 (y, z < 0.1)
Source abstract
Abstract
Weyl (WSMs) evolve from Dirac semimetals in the presence of broken time-reversal symmetry (TRS) or space-inversion symmetry. The WSM phases in TaAs-class materials and photonic crystals are due to the loss of space-inversion symmetry. For TRS-breaking WSMs, despite numerous theoretical and experimental efforts, few examples have been reported. In this Article, we report a new type of magnetic semimetal Sr1-yMn1-zSb2 (y,z<0.1) with nearly massless relativistic fermion behaviour (m*=0.04-0.05m0, where m0 is the free electron mass). This material exhibits a ferromagnetic order for 304K < T < 565K, but a canted antiferromagnetic order with a ferromagnetic component for T < 304K. The combination of relativistic fermion behaviour and ferromagnetism in Sr1-yMn1-zSb2 offers a rare opportunity to investigate the interplay between relativistic fermions and spontaneous TRS breaking.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Topological Materials and Phenomena · Advanced Condensed Matter Physics · Cold Atom Physics and Bose-Einstein Condensates
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Wang, Z. et al. Dirac semimetal and topological phase transitions in A3Bi(A = Na, K, Rb). Phys. Rev. B 85, 195320 (2012).10.1103/PhysRevB.85.195320 ↗
2. Liu, Z. K. et al. Discovery of a three-dimensional topological Dirac semimetal, Na3Bi. Science 343, 864–867 (2014).10.1126/science.1245085 ↗
3. Wang, Z., Weng, H., Wu, Q., Dai, X. & Fang, Z. Three-dimensional Dirac semimetal and quantum transport in Cd3As2 . Phys. Rev. B 88, 125427 (2013).10.1103/PhysRevB.88.125427 ↗
4. Liu, Z. K. et al. A stable three-dimensional topological Dirac semimetal Cd3As2 . Nat. Mater. 13, 677–681 (2014).10.1038/nmat3990 ↗
5. Neupane, M. et al. Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2 . Nat. Commun. 5, 3786 (2014).10.1038/ncomms4786 ↗
6. Borisenko, S. et al. Experimental realization of a three-dimensional Dirac semimetal. Phys. Rev. Lett. 113, 027603 (2014).10.1103/PhysRevLett.113.027603 ↗
7. Liang, T. et al. Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd3As2 . Nat. Mater. 14, 280–284 (2015).10.1038/nmat4143 ↗
8. Narayanan, A. et al. Linear magnetoresistance caused by mobility fluctuations in n-doped Cd3As2 . Phys. Rev. Lett. 114, 117201 (2015).10.1103/PhysRevLett.114.117201 ↗
9. Li, Q. et al. Chiral magnetic effect in ZrTe5 . Nat. Phys. 12, 550–554 (2016).10.1038/nphys3648 ↗
10. Bian, G. et al. Topological nodal-line fermions in spin–orbit metal PbTaSe2 . Nat. Commun. 7, 10556 (2016).10.1038/ncomms10556 ↗
11. Wu, Y. et al. Dirac node arcs in PtSn4 . Nat. Phys. 12, 667–671 (2016).10.1038/nphys3712 ↗
12. Schoop, L. M. et al. Dirac cone protected by non-symmorphic symmetry and three-dimensional Dirac line node in ZrSiS. Nat. Commun. 7, 11696 (2016).10.1038/ncomms11696 ↗
13. Huang, S.-M. et al. A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class. Nat. Commun. 6, 7373 (2015).10.1038/ncomms8373 ↗
14. Weng, H., Fang, C., Fang, Z., Bernevig, B. A. & Dai, X. Weyl semimetal phase in noncentrosymmetric transition-metal monophosphides. Phys. Rev. X 5, 011029 (2015).
15. Wan, X., Turner, A. M., Vishwanath, A. & Savrasov, S. Y. Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates. Phys. Rev. B 83, 205101 (2011).10.1103/PhysRevB.83.205101 ↗
16. Nielsen, H. B. & Ninomiya, M. The Adler-Bell-Jackiw anomaly and Weyl fermions in a crystal. Phys. Lett. B 130, 389–396 (1983).10.1016/0370-2693(83)91529-0 ↗
17. Son, D. T. & Spivak, B. Z. Chiral anomaly and classical negative magnetoresistance of Weyl metals. Phys. Rev. B 88, 104412 (2013).10.1103/PhysRevB.88.104412 ↗
18. Jho, Y.-S. & Kim, K.-S. Interplay between interaction and chiral anomaly: anisotropy in the electrical resistivity of interacting Weyl metals. Phys. Rev. B 87, 205133 (2013).10.1103/PhysRevB.87.205133 ↗
19. Yang, L. X. et al. Weyl semimetal phase in the non-centrosymmetric compound TaAs. Nat. Phys. 11, 728–732 (2015).10.1038/nphys3425 ↗
20. Xu, S.-Y. et al. Discovery of a Weyl fermion semimetal and topological Fermi arcs. Science 349, 613–617 (2015).10.1126/science.aaa9297 ↗
21. Xu, N. et al. Observation of Weyl nodes and Fermi arcs in tantalum phosphide. Nat. Commun. 7, 11006 (2015).10.1038/ncomms11006 ↗
22. Lv, B. Q. et al. Experimental discovery of Weyl semimetal TaAs. Phys. Rev. X 5, 031013 (2015).
23. Xu, S.-Y. et al. Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide. Nat. Phys. 11, 748–754 (2015).10.1038/nphys3437 ↗
24. Lu, L. et al. Experimental observation of Weyl points. Science 349, 622–624 (2015).10.1126/science.aaa9273 ↗
25. Borisenko, S. et al. Time-reversal symmetry breaking type-II Weyl state in YbMnBi2. Preprint at http://arxiv.org/abs/1507.04847 (2015).
26. Park, J. et al. Anisotropic Dirac fermions in a Bi square net of SrMnBi2 . Phys. Rev. Lett. 107, 126402 (2011).10.1103/PhysRevLett.107.126402 ↗
27. Feng, Y. et al. Strong anisotropy of Dirac cones in SrMnBi2 and CaMnBi2 revealed by angle-resolved photoemission spectroscopy. Sci. Rep. 4, 05385 (2014).10.1038/srep05385 ↗
28. Masuda, H. et al. Quantum Hall effect in a bulk antiferromagnet EuMnBi2 with magnetically confined two-dimensional Dirac fermions. Sci. Adv. 2, e1501117 (2016).10.1126/sciadv.1501117 ↗
29. Farhan, M. A., Geunsik, L. & Ji Hoon, S. AEMnSb2 (AE = Sr, Ba): a new class of Dirac materials. J. Phys. Condens. Matter 26, 042201 (2014).10.1088/0953-8984/26/4/042201 ↗
30. Liu, J. et al. Nearly massless Dirac fermions hosted by Sb square net in BaMnSb2 . Sci. Rep. 6, 30525 (2016).10.1038/srep30525 ↗
31. Brechtel, E., Cordier, G. & Schäfer, H. Neue ternäre erdalkali-übergangselement-pnictide. J. Less-Common Met. 79, 131–138 (1981).10.1016/0022-5088(81)90057-6 ↗
32. Kartsovnik, M. V. High magnetic fields: a tool for studying electronic properties of layered organic metals. Chem. Rev. 104, 5737–5782 (2004).10.1021/cr0306891 ↗
33. He, L. P. et al. Quantum transport evidence for the three-dimensional Dirac semimetal phase in Cd3As2 . Phys. Rev. Lett. 113, 246402 (2014).10.1103/PhysRevLett.113.246402 ↗
34. Zhao, Y. et al. Anisotropic Fermi surface and quantum limit transport in high mobility three-dimensional Dirac semimetal Cd3As2 . Phys. Rev. X 5, 031037 (2015).
35. Taskin, A. A. & Ando, Y. Berry phase of nonideal Dirac fermions in topological insulators. Phys. Rev. B 84, 035301 (2011).10.1103/PhysRevB.84.035301 ↗
36. Xiong, J. et al. High-field Shubnikov–de Haas oscillations in the topological insulator Bi2Te2Se. Phys. Rev. B 86, 045314 (2012).10.1103/PhysRevB.86.045314 ↗
37. Ando, Y. Topological insulator materials. J. Phys. Soc. Jpn 82, 102001 (2013).10.7566/JPSJ.82.102001 ↗
38. Guo, Y. F. et al. Coupling of magnetic order to planar Bi electrons in the anisotropic Dirac metals AMnBi2 (A = Sr, Ca). Phys. Rev. B 90, 075120 (2014).10.1103/PhysRevB.90.075120 ↗
39. Wang, A. et al. Two-dimensional Dirac fermions in YbMnBi2 antiferromagnet. Phys. Rev. B 94, 165161 (2016).10.1103/PhysRevB.94.165161 ↗
40. Liu, J. Y. et al. Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2. Preprint at http://arxiv.org/abs/1608.05956 (2016).10.1038/s41467-017-00673-7 ↗
41. Huang, S., Kim, J., Shelton, W. A., Plummer, E. W. & Jin, R. Nontrivial Berry phase in magnetic BaMnSb2 semimetal. Proc. Natl Acad. Sci. USA 114, 6256–6261 (2017).10.1073/pnas.1706657114 ↗
42. Hu, J. et al. π Berry phase and Zeeman splitting of Weyl semimetal TaP. Sci. Rep. 6, 18674 (2016).10.1038/srep18674 ↗
43. Lifshitz, I. M. & Kosevich, A. M. Theory of magnetic susceptibility in metals at low temperatures. Sov. Phys. JETP 2, 636–645 (1956).
44. Shoenberg, D. Magnetic Oscillations in Metals (Cambridge Univ. Press, 1984).10.1017/CBO9780511897870 ↗
45. Mikitik, G. P. & Sharlai, Y. V. Manifestation of Berry’s phase in metal physics. Phys. Rev. Lett. 82, 2147–2150 (1999).10.1103/PhysRevLett.82.2147 ↗
46. Chakoumakos, B. C. et al. Four-circle single-crystal neutron diffractometer at the High Flux Isotope Reactor. J. Appl. Crystallogr. 44, 655–658 (2011).10.1107/S0021889811012301 ↗
47. Wills, A. S. A new protocol for the determination of magnetic structures using simulated annealing and representational analysis (SARAh). Physica B 276–278, 680–681 (2000).10.1016/S0921-4526(99)01722-6 ↗
48. Rodríguez-Carvajal, J. Recent advances in magnetic structure determination by neutron powder diffraction. Physica B 192, 55–69 (1993).10.1016/0921-4526(93)90108-I ↗