强磁场中的自旋向列

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI:10.1134/s0031918x24600064

Ya. Yu. Matyunina, O. A. Kosmachev, Yu. A. Fridman

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引用次数: 0

摘要

摘要在平均场近似中研究了铁磁性物质在强磁场下存在自旋向列态的可能性，铁磁性物质表现出很大的二次交换相互作用，并具有自旋 S = 1 的磁性离子。研究了超越海森堡模型的各向同性和各向异性铁磁体的情况。研究了自旋向列的几何投影随磁场强度的变化。

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A Spin Nematic in a Strong Magnetic Field

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A Spin Nematic in a Strong Magnetic Field

Abstract

The possibility of existence of a spin nematic state under a strong magnetic field in a ferromagnetic substance, which exhibits large biquadratic exchange interaction and has a magnetic ion with spin S = 1, is investigated within the mean field approximation. The case of both isotropic and anisotropic ferromagnets beyond the Heisenberg model is studied. The transformation of the geometric projection of a spin nematic with respect to the magnetic field strength has been studied.

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来源期刊

Physics of Metals and Metallography 工程技术-冶金工程

CiteScore

2.00

自引率

25.00%

发文量

108

审稿时长

3 months

期刊介绍： The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.