Influence, of Mn substitution on magnetic behavior of La(Fe1-xMnx)2Si2 alloys

被引:11
|
作者
Vejpravová, J [1 ]
Divis, M [1 ]
Prokleska, J [1 ]
Svoboda, P [1 ]
Sechovsky, V [1 ]
机构
[1] Charles Univ Prague, Dept Elect Struct, Prague 12116 2, Czech Republic
关键词
intermetallic compounds; density functional calculations; specific heat-low temperature;
D O I
10.1016/j.jmmm.2004.11.326
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of isostructural La(Fe1-xMnx)(2)Si-2 pseudoternaries has been synthesized and characterized by X-ray powder diffraction and microprobe analysis. While the Mn-rich compounds behave like the pure LaMn2Si2 with both T-N and T-C systematically shifted to lower temperatures, the Mn-poor compounds show a steep tail on the low-temperature dependence of the specific heat with a maximum slope for x = 0.025. An influence-of Mn substitution on the ground state of La(Fe1-xMnx)(2)Si-2 solid Solutions will be discussed in comparison with the results of electronic structure calculations. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:621 / 624
页数:4
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