Enhanced paramagnetic thermal expansion of the intermetallic compounds Y-6(Mn1-xFex)(23)

被引：7
|
作者：
Dubenko, IS
Granovskiy, SA
Gratz, E
Levitin, RZ
Lindbaum, A
Markosyan, AS
机构：
[1] MOSCOW INST RADIO ENGN ELECT & AUTOMAT, MOSCOW 117454, RUSSIA
[2] MOSCOW MV LOMONOSOV STATE UNIV, FAC PHYS, MOSCOW 119899, RUSSIA
[3] VIENNA TECH UNIV, INST EXPT PHYS, A-1040 VIENNA, AUSTRIA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 157卷
关键词：
thermal expansion; spin fluctuations; Y6Mn23; Y6Fe23;
D O I：
10.1016/0304-8853(95)00961-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermal expansion measurements of the Y-6(Mn1-xFex)(23) compounds were carried out in the wide temperature region from 4 up to 900 K. In the paramagnetic range a considerable enhancement of the thermal expansion coefficient alpha has been found for the Mn-rich compounds. In Y6Mn23 alpha attains 40 x 10(-6) K-1 and decreases nonlinearly towards 20 x 10(-6) K-1 for Y6Fe23. It is assumed that this strongly enhanced value of alpha in the Mn-rich compounds is caused by a large spin fluctuation contribution to the total thermal expansion.
引用
收藏
页码：629 / 630
页数：2
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