@article{51415a6b8b6a427db61991514b36ebe2,
title = "A magnetic topological semimetal Sr1-y Mn1-zSb2 (y, z < 0.1)",
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-y Mn1-z Sb2 (y, z < 0.1) with nearly massless relativistic fermion behaviour (m-=0.04-0.05m0, where m 0 is the free-electron mass). This material exhibits a ferromagnetic order for 304 K<T<565 K, but a canted antiferromagnetic order with a ferromagnetic component for T<304 K. The combination of relativistic fermion behaviour and ferromagnetism in Sr 1-y Mn1-z Sb 2 offers a rare opportunity to investigate the interplay between relativistic fermions and spontaneous TRS breaking.",
author = "Liu, {J. Y.} and J. Hu and Q. Zhang and D. Graf and Cao, {H. B.} and Radmanesh, {S. M.A.} and Adams, {D. J.} and Zhu, {Y. L.} and Cheng, {G. F.} and X. Liu and Phelan, {W. A.} and J. Wei and M. Jaime and F. Balakirev and Tennant, {D. A.} and DItusa, {J. F.} and I. Chiorescu and L. Spinu and Mao, {Z. Q.}",
note = "Funding Information: The authors thank C. Wu at UCSD for helpful discussions. The work at Tulane University was supported by the NSF under Grant DMR-1205469 (support for personnel and materials) and Louisiana Board of Regents under grant LEQSF(2014-15)-ENH-TR-24 (support for equipment purchase). The neutron scattering work used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory, and is supported by the US Department of Energy under EPSCoR Grant No. DE-SC0012432 with additional support from the Louisiana Board of Regents. The work at UNO is supported by the NSF under the NSF EPSCoR Cooperative Agreement No. EPS-1003897 with additional support from the Louisiana Board of Regents. The work at FSU and at the National High Magnetic Field Laboratory is supported by the NSF grant No. DMR-1206267, the NSF Cooperative Agreement No. DMR-1157490, and the State of Florida. Work at LANL was supported by the US DOE Basic Energy Science project {\textquoteleft}Science at 100 Tesla{\textquoteright}. The authors also acknowledge support from grant DOE DE-NA0001979. Publisher Copyright: {\textcopyright} 2017 Macmillan Publishers Limited, part of Springer Nature.",
year = "2017",
month = sep,
day = "1",
doi = "10.1038/nmat4953",
language = "English (US)",
volume = "16",
pages = "905--910",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "Nature Publishing Group",
number = "9",
}