Substitution and liquid quenching effects on magnetic and magnetocaloric properties of (Gd1-xTbx)12Co7

被引：7
|
作者：
Shishkin, D. A. [1 ,2 ]
Baranov, N. V. [1 ,2 ]
Volegov, A. S. [2 ]
Gaviko, V. S. [1 ]
机构：
[1] Russian Acad Sci, Ural Branch, MN Miheev Inst Met Phys, Ekaterinburg 620990, Russia
[2] Ural Fed Univ, Inst Nat Sci, Ekaterinburg 620083, Russia
来源：
SOLID STATE SCIENCES | 2016年 / 52卷
基金：
俄罗斯基础研究基金会;
关键词：
(Gd1-xTbx)(12)Co-7; Amorphous alloys; Magnetic moments; Magnetocaloric effect; ANISOTROPY; ALLOYS; ORDER; MODEL;
D O I：
10.1016/j.solidstatesciences.2015.12.012
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The influence of rapid quenching from the melt on the magnetic and magnetothermal properties of the (Gd1-xTbx)(12)Co-7 samples has been investigated. The melt-spun (Gd1-xTbx)(12)Co-7 alloys are observed to exhibit a ferromagnetic-like behavior and increased T-C values at low Tb concentration in comparison with crystalline counterparts. The amorphization is suggested to result in the appearance of a small magnetic moment on Co atoms in Gd-rich liquid-quenched alloys. In low magnetic fields, the melt-spun (Gd1-xTbx)(12)Co-7 alloys with high Tb concentrations exhibit enhanced values of the isothermal entropy change and refrigerant capacity then the crystalline compounds of the same composition. (C) 2015 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：92 / 96
页数：5
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