Title:	Magnetic exchange interactions in yttrium iron garnet: A fully relativistic first-principles investigation
Authors:	Gorbatov, O. I. Johansson, G. Jakobsson, A. Mankovsky, S. Ebert, H. Di Marco, I. Minár, Jan Etz, C.
Citation:	GORBATOV, OI. JOHANSSON, G. JAKOBSSON, A. MANKOVSKY, S. EBERT, H. DI MARCO, I. MINÁR, J. ETZ, C. Magnetic exchange interactions in yttrium iron garnet: A fully relativistic first-principles investigation. Physical Review B, 2021, roč. 104, č. 17, s. nestránkováno. ISSN: 2469-9950
Issue Date:	2021
Publisher:	American Physical Society
Document type:	článek article
URI:	2-s2.0-85120050743 http://hdl.handle.net/11025/47053
ISSN:	2469-9950
Keywords in different language:	superexchange interaction;optical-properties;self-consistent;dispersion;Y3FE5O12;spectra;energies;crystal
Abstract in different language:	Magnetic isotropic and Dzyaloshinskii-Moriya interactions in yttrium iron garnet have been obtained by initio fully relativistic calculations. The calculated coupling constants are in agreement with available experimental data. Using linear spin-wave theory, we are able to reproduce the experimental magnon spectrum including the spin-wave gap and stiffness. The way to calculate the exchange coupling constants using the Korringa-Kohn-Rostoker formalism for large magnetic systems such as complex oxides is discussed in detail.
Rights:	© American Physical Society
Appears in Collections:	Články / Articles (RAM) OBD

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