临界指数
Widom缩放
凝聚态物理
磁化
临界现象
居里温度
相变
缩放比例
铁磁性
物理
平均场理论
临界场
磁场
材料科学
数学
超导电性
量子力学
几何学
作者
Wensen Wei,Lin Zu,Yuyan Han,Yimin Xiong,Zhe Qu,Yangfan Hu,Biao Wang,Haifeng Du
标识
DOI:10.1016/j.jallcom.2023.169299
摘要
The critical behavior of antiskyrmion material Mn2Rh0.95Ir0.05Sn was systematically investigated by bulk DC magnetization method around the paramagnetic to ferromagnetic phase transition. We obtain critical exponents of β=0.478±0.008,γ=1.141±0.003, and δ=3.401±0.019, with Curie temperature TC ∼265.6 K via various methods, including modified Arrott plot, Kouvel-Fisher plot, and critical isotherm methods. The critical exponents are self-consistent and verified by Widom scaling relation, indicating a near Landau mean-field behavior occurring in Mn2Rh0.95Ir0.05Sn. With these critical exponents, the curves of reduced magnetization versus reduced magnetic field collapse into two bunches around TC, confirming the reliability of the obtained critical exponents. Additionally, the magnetic exchange interaction in Mn2Rh0.95Ir0.05Sn decays slowly.
科研通智能强力驱动
Strongly Powered by AbleSci AI