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

Authors
Kaczmarska, K Pierre, J Tobola, J Skolozdra, RV
Citation
K. Kaczmarska et al., Anderson localization of 3d Mn states in semi-Heusler phases, PHYS REV B, 60(1), 1999, pp. 373-382
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
1
Year of publication
1999
Pages
373 - 382
Database
ISI
SICI code
0163-1829(19990701)60:1<373:ALO3MS>2.0.ZU;2-8
Abstract
The solid solutions NiTi1-xMnxSb and CoV1-xMnxSb between metallic compounds are studied. For low Mn concentrations, Mn 3d states are localized as show n by magnetic measurements and electronic structure calculations. Magnetic interactions suddenly and strongly increase near x = 0.4, while a semicondu cting like behavior is observed in the range x=0.35-0.45. These features ar e tentatively explained by the Anderson localization of d states in these d isordered solutions. Large magnetoresistance effects are observed in some p hases near their magnetic ordering temperature. [S0163-1829(99)03225-7].