Large Isotropic Volume Change due to Thermal-induced First-order Transition in La1-zPrz(Fe0.88Si0.12)13

被引：1
|
作者：
Fujieda, S. [1 ]
Fujita, A.
Fukamichi, K. [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
来源：
2ND INTERNATIONAL SYMPOSIUM ON ADVANCED MAGNETIC MATERIALS AND APPLICATIONS (ISAMMA 2010) | 2011年 / 266卷
关键词：
ELECTRON METAMAGNETIC TRANSITION; PARTIAL SUBSTITUTION; CE; LA;
D O I：
10.1088/1742-6596/266/1/012008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
NaZn13-type La0.5Pr0.5(Fe0.88Si0.12)(13) exhibits an isotropic volume change associated with the thermal-induced first-order transition at the Curie temperature T-C = 186 K. The magnitude of the isotropic volume change at T-C of La0.5Pr0.5(Fe0.88Si0.12)(13) is about 1.3 %, larger than that of La(Fe0.88Si0.12)(13). As a result, the enhancement in the local magnetic moment of Fe at T-C is caused by the partial substitution of Pr. The volume change around T-C of La1-zPrz(Fe0.88Si0.12)(13) is comparable in magnitude to that of La1-z'Cez'(Fe0.88Si0.12)(13) having the same T-C. Accordingly, the enhancement in the local magnetic moment of Fe at T-C for La1-zPrz(Fe0.88Si0.12)(13) is closely related with the decrease of T-C without the marked decrease of thermal stability of Fe moment.
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页数：4
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