The valence band parameters of CoSb3 determined by Shubnikov-de Haas effect

Authors
Rakoto, H Respaud, M Broto, JM Arushanaov, E Caillat, T
Citation
H. Rakoto et al., The valence band parameters of CoSb3 determined by Shubnikov-de Haas effect, PHYSICA B, 269(1), 1999, pp. 13-16
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
269
Issue
1
Year of publication
1999
Pages
13 - 16
Database
ISI
SICI code
0921-4526(199907)269:1<13:TVBPOC>2.0.ZU;2-6
Abstract
The results of Shubnikov-de Haas (SdH) oscillation measurements on p-CoSb3 single crystals are presented. The values of the cyclotron effective mass w ere determined. It was found that the effective mass increases from 0.11 m( 0), to 0.15 m(0) with increasing hole concentration, indicating a non-parab olicity of the valence band of CoSb3. Using the two-band Kane model a band- edge effective mass of m(n)/m(0) = 0.050 +/- 0.002 and an energy gap E-g = 35 +/- 2 meV were estimated. (C) 1999 Elsevier Science B.V. All rights rese rved.