Magnetic, magnetocaloric properties and phenomenological model in amorphous Fe60Ru20B20 alloy

被引：17
作者：
Boutahar, A. [1 ]
Lassri, H. [1 ]
Hlil, E. K. [2 ,3 ]
机构：
[1] Univ Hassan II Casablanca, Fac Sci Ain Chock, LPMMAT, Casablanca, Morocco
[2] CNRS, Inst Neel, F-38042 Grenoble 9, France
[3] Univ Grenoble 1, F-38042 Grenoble 9, France
来源：
SOLID STATE COMMUNICATIONS | 2015年 / 221卷
关键词：
Amorphous Fe60Ru20B20 alloy; Magnetocaloric effect; Magnetic transition; Phenomenological model; ROOM-TEMPERATURE; METALLIC GLASSES; BEHAVIOR; COMPOUND; RIBBONS;
D O I：
10.1016/j.ssc.2015.08.002
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Magnetic, magnetocaloric properties and phenomenological model of amorphous Fe60Ru20B20 alloy are investigated in detail. The amorphous alloy has been synthesized using melt spinning method. The magnetic transition nature undergoes a second-order magnetic phase transition from ferromagnetic to paramagnetic states with a Curie temperature of 254 K. Basis on the thermodynamic Maxwell's relation, magnetic entropy change (-Delta S-M) is calculated. Further, we also report a theoretical investigation of the magnetocaloric effect using a phenomenological model. The best model parameters and their variation with temperature and the magnetic field were determined. The theoretical predictions are found to agree closely with experimental measurements. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：9 / 13
页数：5
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