NIYAZI, Abuduaini, Dominique Alain GEFFROY and Jan KUNEŠ. Antiferromagnetic magnons and local anisotropy: Dynamical mean-field study. Physical Review B. The American Physical Society, 2021, vol. 104, No 7, p. "075152", 7 pp. ISSN 2469-9950. Available from: https://dx.doi.org/10.1103/PhysRevB.104.075152.
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Basic information
Original name Antiferromagnetic magnons and local anisotropy: Dynamical mean-field study
Authors NIYAZI, Abuduaini, Dominique Alain GEFFROY (250 France, guarantor, belonging to the institution) and Jan KUNEŠ.
Edition Physical Review B, The American Physical Society, 2021, 2469-9950.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.908
RIV identification code RIV/00216224:14310/21:00119262
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1103/PhysRevB.104.075152
UT WoS 000689734400004
Keywords in English Hubbard model; Spin dynamics; Antiferromagnets; Green's function methods; Magnetic order
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 11/10/2021 16:00.
Abstract
We present a dynamical mean-field study of antiferromagnetic magnons in a one-, two-, and three-orbital Hubbard model of square and bcc cubic lattice at intermediate coupling strength. We investigate the effect of anisotropy introduced by an external magnetic field or single-ion anisotropy. For the latter we tune continuously between the easy-axis and easy-plane models. We also analyze a model with spin-orbit coupling in cubic site-symmetry setting. The ordered states as well as the magnetic excitations are sensitive to even a small breaking of SU(2) symmetry of the model and follow the expectations of spin-wave theory as well as general symmetry considerations.
Links
GA19-16937S, research and development projectName: Frustrované a nefrustrované spinové systémy s měkkými spiny v relativistických Mottových izolantech
Investor: Czech Science Foundation
90070, large research infrastructuresName: IT4Innovations
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