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

54 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

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All Science Journal Classification (ASJC) codes

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

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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.

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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.",

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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

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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.

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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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