Journal article

Magnetic structure and excitations of the topological semimetal YbMnBi2

Abstract:: We investigated the magnetic structure and dynamics of YbMnBi2, with elastic and inelastic neutron scattering, to shed light on the topological nature of the charge carriers in the antiferromagnetic phase. We confirm C-type antiferromagnetic ordering of the Mn spins below TN = 290 K and determine that the spins point along the c axis to within about 3◦. The observed magnon spectrum can be described very well by the same effective spin Hamiltonian that was used previously to model the magnon spectrum of CaMnBi2. Our results show conclusively that the creation of Weyl nodes in YbMnBi2 by the time-reversal symmetry-breaking mechanism can be excluded in the bulk.

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Soh, J., Jacobsen, H., Ouladdiaf, B., Ivanov, A., Piovano, A., Tejsner, T., Feng, Z., Wang, H., Su, H., Guo, Y., Shi, Y., & Boothroyd, A. (2019). Magnetic structure and excitations of the topological semimetal YbMnBi2. Physical Review B, 100(14).

MLA Style

Soh, J., et al. “Magnetic Structure and Excitations of the Topological Semimetal YbMnBi2.” Physical Review B, vol. 100, no. 14, American Physical Society, 2019.

Chicago Style

Soh, J, H Jacobsen, B Ouladdiaf, A Ivanov, A Piovano, T Tejsner, Z Feng, et al. 2019. “Magnetic Structure and Excitations of the Topological Semimetal YbMnBi2.” Physical Review B 100 (14).
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Files:: PhysRevB.100.144431.pdf

(Preview, Version of record, pdf, 2.3MB, Terms of use)

Publisher copy:: 10.1103/PhysRevB.100.144431

Authors

+ Soh, J More by this author

Institution:: University of Oxford
Division:: MPLS Division
Department:: Physics
Sub department:: Condensed Matter Physics
Role:: Author

+ Jacobsen, H More by this author

Institution:: University of Oxford
Division:: MPLS Division
Department:: Physics
Sub department:: Condensed Matter Physics
Role:: Author

+ Ouladdiaf, B More by this author

Role:: Author

+ Ivanov, A More by this author

Role:: Author

+ Piovano, A More by this author

Role:: Author

More authors...

+ Engineering & Physical Sciences Research Council More from this funder

Grant:: EP/J017124/1

Publisher:: American Physical Society
Journal:: Physical Review B More from this journal
Volume:: 100
Issue:: 14
Article number:: 144431
Publication date:: 2019-10-22
Acceptance date:: 2019-10-04
DOI:: 10.1103/PhysRevB.100.144431
EISSN:: 2469-9969
ISSN:: 2469-9950

Keywords:: FFR
Pubs id:: pubs:1072087
UUID:: uuid:224d4342-c6e1-4c31-91d6-cf47c81375cb
Local pid:: pubs:1072087
Source identifiers:: 1072087
Deposit date:: 2019-11-15

Terms of use

Copyright holder:: American Physical Society
Copyright date:: 2019
Notes:: © 2019 American Physical Society.

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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