Magnetic exchange interactions in yttrium iron garnet: A fully relativistic first-principles investigation
نویسندگان
چکیده
Magnetic isotropic and Dzyaloshinskii-Moriya interactions in yttrium iron garnet have been obtained by ab initio fully relativistic calculations. The calculated coupling constants are agreement with available experimental data. Using linear spin-wave theory, we able to reproduce the magnon spectrum including gap stiffness. way calculate exchange using Korringa-Kohn-Rostoker formalism for large magnetic systems such as complex oxides is discussed detail.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.104.174401