FeCoGdMoB非晶带材的结构、磁热效应及临界行为

Structure, Magnetocaloric Effect and Critical Behavior of the FeCoGdMoB Amorphous Ribbons.

作者信息

Łukiewska Agnieszka, Gębara Piotr

机构信息

Department of Physics, Częstochowa University of Technology, Armii Krajowej 19 Av., 42-201 Czestochowa, Poland.

出版信息

Materials (Basel). 2021 Dec 21;15(1):34. doi: 10.3390/ma15010034.

DOI:10.3390/ma15010034

PMID:35009181

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8746007/

Abstract

The aim of the paper was to study the structure, magnetic properties and critical behavior of the FeCoGdMoB alloy. The X-ray diffractometry and the Mössbauer spectroscopy studies confirmed amorphous structure. The analysis of temperature evolution of the exponent n (ΔS = C·(B)) and the Arrott plots showed the second order phase transition in investigated material. The analysis of critical behavior was carried out in order to reveal the critical exponents and precise T value. The ascertained critical exponents were used to determine the theoretical value of the exponent n, which corresponded well with experimental results.

摘要

本文的目的是研究FeCoGdMoB合金的结构、磁性和临界行为。X射线衍射和穆斯堡尔光谱研究证实了非晶结构。对指数n（ΔS = C·(B)）的温度演化分析和阿罗特图表明所研究材料中存在二级相变。进行临界行为分析以揭示临界指数和精确的T值。确定的临界指数用于确定指数n的理论值，该理论值与实验结果吻合良好。