Localisation of Mn 3d states in semi-Heusler compounds

Authors
Pierre, J Kaczmarska, K Tobola, J Skolozdra, RV Melnyk, GA
Citation
J. Pierre et al., Localisation of Mn 3d states in semi-Heusler compounds, PHYSICA B, 261, 1999, pp. 841-842
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
261
Year of publication
1999
Pages
841 - 842
Database
ISI
SICI code
0921-4526(199901)261:<841:LOM3SI>2.0.ZU;2-Q
Abstract
CoV1-xMnxSb and NiTi1-xMnxSb solid solutions are studied. For x(Mn) less th an or equal to 0.3, Mn states are localised below E-F, the resistivity is m etallic, magnetic interactions are weak. Near x = 0.35, a semiconducting be haviour appears in both series, and ferromagnetic interactions strongly inc rease. For x > 0.5, a metallic regime is recovered. This is attributed to A nderson localisation of 3d states due to atomic and magnetic disorders. (C) 1999 Elsevier Science B.V. All rights reserved.