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Physics of Metals and Metallography

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01.01.2024 | ELECTRICAL AND MAGNETIC PROPERTIES

Relation between Magnetism and Electronic Structure of 3d-Metal Alloys in the Stoner Theory and in the DSFT

verfasst von: N. B. Melnikov, A. S. Gulenko, B. I. Reser

Erschienen in: Physics of Metals and Metallography | Ausgabe 1/2024

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Abstract

We study the dependence of magnetic properties: Curie temperature, mean and local magnetic moments—on the type of crystal lattice and average number of d electrons per atom. The problem is considered in two approximations: with spin fluctuations not taken into account, in the Stoner mean field theory, and with spin fluctuations taken into account, in the dynamic spin fluctuation theory (DSFT). In the DSFT, we obtain an analogue of the Slater–Pauling curve for the mean magnetic moment at finite temperatures. Numerical results in the DSFT are in qualitative agreement with experiment: with magnetic phase diagram and dependence of magnetic moment on concentration in ferromagnetic alloys.

Vorheriger Artikel Micromagnetic Simulation of Irregular Magnetization Reversal Dynamics in a Nanosized Permalloy Film with a Stepped Relief of the Boundary Surface

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Titel: Relation between Magnetism and Electronic Structure of 3d-Metal Alloys in the Stoner Theory and in the DSFT
verfasst von: N. B. Melnikov
A. S. Gulenko
B. I. Reser
Publikationsdatum: 01.01.2024
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 1/2024
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X23602275

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