Magnetic properties of Sm-based bulk metallic glasses

被引：4
|
作者：
Lu, C. L. [1 ]
Liu, H. M. [1 ,2 ]
Wang, K. F. [1 ,2 ]
Dong, S. [1 ,2 ]
Liu, J. -M. [1 ,2 ]
Wang, Q. [3 ]
Dong, C. [3 ]
机构：
[1] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China
[2] Chinese Acad Sci, China Int Ctr Mat Phys, Shenyang, Peoples R China
[3] Dalian Univ Technol, Lab Mat Modificat, Dalian 116024, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 19期
关键词：
Metallic glass; Cluster spin glass; Exchange interaction; FE; ALLOYS; RE; CO; DY; ND;
D O I：
10.1016/j.jmmm.2010.04.040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We perform detailed investigation on the magnetization and specific heat of Sm-based ternary bulk metallic glasses with different Co contents at low temperature. A low temperature cluster spin-glass phase below T-f similar to 25 K is evidenced for all samples. This cluster spin-glass behavior is ascribed to competition among the multi-fold magnetic interactions and the intrinsic structural in homogeneity. The magnetic relaxation behavior of the spin-glass phase can be well described using the stretched exponential dynamics. The magnetic hysteresis under field-cooling condition and spin dynamics further demonstrate the low temperature cluster spin-glass behavior. It is revealed that the Co atoms play an important role in modulating the physical properties of the present Sm-based ternary metallic glasses. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2845 / 2850
页数：6
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