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

Research output: Contribution to journalArticle

43 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)905-910
Number of pages6
JournalNature Materials
Volume16
Issue number9
DOIs
StatePublished - Sep 1 2017

Fingerprint

Metalloids
Fermions
metalloids
fermions
broken symmetry
symmetry
inversions
electron mass
Ferromagnetism
Photonic crystals
ferromagnetism
free electrons
photonics
Electrons
crystals

All Science Journal Classification (ASJC) codes

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

Cite this

Liu, J. Y., Hu, J., Zhang, Q., Graf, D., Cao, H. B., Radmanesh, S. M. A., ... Mao, Z. Q. (2017). A magnetic topological semimetal Sr1-y Mn1-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 Sr1-y Mn1-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.",
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.}",
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Liu, JY, Hu, J, Zhang, Q, Graf, D, Cao, HB, Radmanesh, SMA, Adams, DJ, Zhu, YL, Cheng, GF, Liu, X, Phelan, WA, Wei, J, Jaime, M, Balakirev, F, Tennant, DA, DItusa, JF, Chiorescu, I, Spinu, L & Mao, ZQ 2017, 'A magnetic topological semimetal Sr1-y Mn1-zSb2 (y, z < 0.1)', Nature Materials, vol. 16, no. 9, pp. 905-910. https://doi.org/10.1038/nmat4953

A magnetic topological semimetal Sr1-y Mn1-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 journalArticle

TY - JOUR

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.

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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Liu JY, Hu J, Zhang Q, Graf D, Cao HB, Radmanesh SMA et al. A magnetic topological semimetal Sr1-y Mn1-zSb2 (y, z < 0.1). Nature Materials. 2017 Sep 1;16(9):905-910. https://doi.org/10.1038/nmat4953