Anderson localization of 3d Mn states in semi-Heusler phases

被引:33
作者
Kaczmarska, K
Pierre, J
Tobola, J
Skolozdra, RV
机构
[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
[2] CNRS, Lab Louis Neel, F-38042 Grenoble, France
[3] AGH Univ Sci & Technol, Fac Phys & Nucl Techniques, PL-30058 Krakow, Poland
[4] I Franko Univ, Dept Inorgan Chem, UA-290005 Lvov, Ukraine
关键词
D O I
10.1103/PhysRevB.60.373
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The solid solutions NiTi1-xMnxSb and CoV1-xMnxSb between metallic compounds are studied. For low Mn concentrations, Mn 3d states are localized as shown by magnetic measurements and electronic structure calculations. Magnetic interactions suddenly and strongly increase near x = 0.4, while a semiconducting like behavior is observed in the range x=0.35-0.45. These features are tentatively explained by the Anderson localization of d states in these disordered solutions. Large magnetoresistance effects are observed in some phases near their magnetic ordering temperature. [S0163-1829(99)03225-7].
引用
收藏
页码:373 / 382
页数:10
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