振荡磁场中自旋7/2多层Ising系统的动态磁特性

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-02-21 DOI:10.1080/01411594.2023.2177161

M. Ertaş, M. Batı

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引用次数: 1

摘要

摘要我们研究了外磁场振荡下自旋为7/2的多层Ising系统的动态磁特性，如动态相变、动态补偿温度和动态相图。使用Glauber型随机动力学在平均场近似下模拟了该系统。检查了平均亚晶格磁化的时间变化，以确定系统的动态相位。研究了动态子晶格磁化的热行为，以确定动态相变的类型（一阶或二阶）并获得动态补偿温度。并且在各种类型的磁化曲线中可以看到类型补偿行为。对于不同的哈密顿参数值，在和平面中计算相图。p、i、f1/2、f7/2、af7/2和af1/2基本相位，以及i + p、我 + f1/2，af1/2 + p、 af7/2 + p和i + af1/2混合相。该系统说明了一个、两个或三个动态临界点（•）以及E、TP、Z和B特殊点。

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Dynamic magnetic properties of spin-7/2 multilayer Ising system in an oscillating magnetic field

ABSTRACT We studied the dynamic magnetic properties such as dynamic phase transitions, dynamic compensation temperatures, and dynamic phase diagrams in the spin-7/2 multilayer Ising system under an oscillating external magnetic field The system was simulated in the mean-field approximation using a Glauber type stochastic dynamic. The mean sublattice magnetizations’ time variations were examined to determine the system's dynamic phases. The thermal behavior of dynamic sublattice magnetizations was investigated to determine the type of dynamic phase transitions (first- or second-order) and to obtain the dynamic compensation temperatures. and type compensating behaviors were seen in various types of magnetization curves. The phase diagrams are calculated in and planes, for different values of the Hamiltonian parameters. The p, i, f1/2 , f7/2 , af7/2 , and af1/2 fundamental phases, as well as the i + p, i + f1/2 , af1/2 + p, af7/2 + p and i + af1/2 mixed phases. The system illustrated one, two, or three dynamic critical points (•) and E, TP, Z, and B special points.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.