Determining the preferred directions of magnetisation in cubic crystals using symmetric polynomial inequalities

Autor:	Samad Fabian, Hellwig Olav
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	anisotropy cubic magnetic anisotropy symmetric polynomial inequalities symmetry cubic crystals Physics QC1-999 Mathematics QA1-939
Zdroj:	Emergent Scientist, Vol 7, p 1 (2023)
Druh dokumentu:	article
ISSN:	2556-8779
DOI:	10.1051/emsci/2023002
Popis:	For a magnetic material, the easy and hard magnetic axes describe the directions of favourable respectively unfavourable alignment of the magnetisation. In this article, we describe how to determine these axes for cubic magnetic crystals. Usually it is assumed without further reasoning that they coincide with some principal symmetry directions of the crystal [Bozorth, Phys. Rev. 50, 1076–1081 (1936)], which is however invalid in general. In contrast, we present a full and elementary analysis using symmetric polynomial inequalities, which are well suited to the symmetry of the problem.
Databáze:	Directory of Open Access Journals
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