A DMI guide to magnets micro-world
| Autor: | Mikhail I. Katsnelson, Yaroslav Kvashnin, Alexander I. Lichtenstein, Vladimir V. Mazurenko |
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| Rok vydání: | 2021 |
| Předmět: |
Solid-state physics
ANISOTROPIC INTERACTION Theory of Condensed Matter ELECTRONIC STRUCTURE General Physics and Astronomy MAGNETIC ENERGIES FOS: Physical sciences INVERSION CENTER 01 natural sciences FIRST PRINCIPLES ELECTRONIC STRUCTURE FERROMAGNETISM Condensed Matter - Strongly Correlated Electrons 0103 physical sciences 010306 general physics WEAK FERROMAGNETISM Spin-½ ORTHOGONAL ORIENTATIONS Physics Magnetic energy Condensed matter physics Spins Strongly Correlated Electrons (cond-mat.str-el) Antisymmetric relation Skyrmion MAGNETIC INTERACTIONS Ferromagnetism Magnet MAGNETIC STRUCTURE HEISENBERG EXCHANGE Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Journal of Experimental and Theoretical Physics, 132, 506-516 J. Exp. Theor. Phys. Journal of Experimental and Theoretical Physics Journal of Experimental and Theoretical Physics, 132, 4, pp. 506-516 |
| ISSN: | 1063-7761 |
| DOI: | 10.48550/arxiv.2106.00398 |
| Popis: | Dzyaloshinskii-Moriya interaction, DMI in short, represents an antisymmetric type of magnetic interactions that favour orthogonal orientation of spins and competes with Heisenberg exchange. Being introduced to explain weak ferromagnetism in antiferromagnets without an inversion center between magnetic atoms such an anisotropic interaction can be used to analyze other non-trivial magnetic structures of technological importance including spin spirals and skyrmions. Despite the fact that the corresponding DMI contribution to the magnetic energy of the system has a very compact form of the vector product of spins, the determination of DMI from first-principles electronic structure is a very challenging methodological and technical problem whose solution opens a door into the fascinating microscopic world of complex magnetic materials. In this paper we review a few such methods developed by us for calculating DMI and their applications to study the properties of real materials. Comment: Contribution for the JETP special issue in honor of I.E. Dzyaloshinskii's 90th birthday |
| Databáze: | OpenAIRE |
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