Magnetic exchange interactions in yttrium iron garnet: A fully relativistic first-principles investigation

Gorbatov, O. I.; Johansson, G.; Jakobsson, A.; Mankovsky, S.; Ebert, H.; Di Marco, I.; Minar, J. und Etz, C. (2021): Magnetic exchange interactions in yttrium iron garnet: A fully relativistic first-principles investigation. In: Physical Review B, Bd. 104, Nr. 17, 174401

Abstract

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.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 2469-9950
• Sprache: Englisch