A magnetic topological semimetal Sr1-y Mn1-zSb2 (y, z < 0.1)

J. Y. Liu; J. Hu; Q. Zhang; D. Graf; H. B. Cao; S. M.A. Radmanesh; D. J. Adams; Y. L. Zhu; G. F. Cheng; X. Liu; W. A. Phelan; J. Wei; M. Jaime; F. Balakirev; D. A. Tennant; J. F. DItusa; I. Chiorescu; L. Spinu; Z. Q. Mao

doi:10.1038/nmat4953

A magnetic topological semimetal Sr_1-y Mn_1-zSb₂ (y, z < 0.1)

J. Y. Liu, J. Hu, Q. Zhang, D. Graf, H. B. Cao, S. M.A. Radmanesh, D. J. Adams, Y. L. Zhu, G. F. Cheng, X. Liu, W. A. Phelan, J. Wei, M. Jaime, F. Balakirev, D. A. Tennant, J. F. DItusa, I. Chiorescu, L. Spinu, Z. Q. Mao

Research output: Contribution to journal › Article › peer-review

99 Scopus citations

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 Mn_1-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 Mn_1-z Sb 2 offers a rare opportunity to investigate the interplay between relativistic fermions and spontaneous TRS breaking.

Original language	English (US)
Pages (from-to)	905-910
Number of pages	6
Journal	Nature Materials
Volume	16
Issue number	9
DOIs	https://doi.org/10.1038/nmat4953
State	Published - Sep 1 2017

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1038/nmat4953

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Liu, J. Y., Hu, J., Zhang, Q., Graf, D., Cao, H. B., Radmanesh, S. M. A., Adams, D. J., Zhu, Y. L., Cheng, G. F., Liu, X., Phelan, W. A., Wei, J., Jaime, M., Balakirev, F., Tennant, D. A., DItusa, J. F., Chiorescu, I., Spinu, L., & Mao, Z. Q. (2017). A magnetic topological semimetal Sr_1-y Mn_1-zSb₂ (y, z < 0.1). Nature Materials, 16(9), 905-910. https://doi.org/10.1038/nmat4953

Liu, J. Y. ; Hu, J. ; Zhang, Q. ; Graf, D. ; Cao, H. B. ; Radmanesh, S. M.A. ; Adams, D. J. ; Zhu, Y. L. ; Cheng, G. F. ; Liu, X. ; Phelan, W. A. ; Wei, J. ; Jaime, M. ; Balakirev, F. ; Tennant, D. A. ; DItusa, J. F. ; Chiorescu, I. ; Spinu, L. ; Mao, Z. Q. / A magnetic topological semimetal Sr_1-y Mn_1-zSb₂ (y, z < 0.1). In: Nature Materials. 2017 ; Vol. 16, No. 9. pp. 905-910.

@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.",

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A magnetic topological semimetal Sr_1-y Mn_1-zSb₂ (y, z < 0.1). / Liu, J. Y.; Hu, J.; Zhang, Q.; Graf, D.; Cao, H. B.; Radmanesh, S. M.A.; Adams, D. J.; Zhu, Y. L.; Cheng, G. F.; Liu, X.; Phelan, W. A.; Wei, J.; Jaime, M.; Balakirev, F.; Tennant, D. A.; DItusa, J. F.; Chiorescu, I.; Spinu, L.; Mao, Z. Q.

In: Nature Materials, Vol. 16, No. 9, 01.09.2017, p. 905-910.

Research output: Contribution to journal › Article › peer-review

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T1 - A magnetic topological semimetal Sr1-y Mn1-zSb2 (y, z < 0.1)

AU - Liu, J. Y.

AU - Hu, J.

AU - Zhang, Q.

AU - Graf, D.

AU - Cao, H. B.

AU - Radmanesh, S. M.A.

AU - Adams, D. J.

AU - Zhu, Y. L.

AU - Cheng, G. F.

AU - Liu, X.

AU - Phelan, W. A.

AU - Wei, J.

AU - Jaime, M.

AU - Balakirev, F.

AU - Tennant, D. A.

AU - DItusa, J. F.

AU - Chiorescu, I.

AU - Spinu, L.

AU - Mao, Z. Q.

N1 - 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 ‘Science at 100 Tesla’. The authors also acknowledge support from grant DOE DE-NA0001979. Publisher Copyright: © 2017 Macmillan Publishers Limited, part of Springer Nature.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - 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.

AB - 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.

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A magnetic topological semimetal Sr_1-y Mn_1-zSb₂ (y, z < 0.1)

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