Some experimental and theoretical studies on the Mn magnetic moment in Y(Ni1-xMnx)2B2C

被引：0
作者：
da Rocha, FS [1 ]
Fragal, GLF
Brandao, DE
Granada, CM
da Silva, CM
Gomes, AA
机构：
[1] UFRGS, Inst Fis, Porto Alegre, RS, Brazil
[2] UFSM, Dept Fis, Santa Maria, RS, Brazil
[3] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL B | 2002年 / 25卷 / 03期
关键词：
D O I：
10.1140/epjb/e20020035
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The magnetic moment of the Mn impurities was obtained from magnetization measurements of Y(Ni(1-x)Nn(x))(2)B2C as a function of the concentration x less than 0.15. Using the coherent potential approximation and starting from 3d density of states, obtained from the first principles calculations, the magnetic moments are obtained within a two sublattice model. For adequately estimated values of the Coulomb interactions U, the position of the energy level of Mn and adopting values for the intersublattice hybridization term, a qualitative agreement With the observed experimental data is obtained.
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收藏
页码：307 / 311
页数：5
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