EFFECT OF THERMAL-EXPANSION COEFFICIENT ON THE TEMPERATURE-DEPENDENCEOF THE BAND-GAP IN CUINTE2

Authors
RINCON C WASIM SM MARIN G
Citation
C. Rincon et al., EFFECT OF THERMAL-EXPANSION COEFFICIENT ON THE TEMPERATURE-DEPENDENCEOF THE BAND-GAP IN CUINTE2, Materials letters, 36(5-6), 1998, pp. 245-248
Citations number
15
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
36
Issue
5-6
Year of publication
1998
Pages
245 - 248
Database
ISI
SICI code
0167-577X(1998)36:5-6<245:EOTCOT>2.0.ZU;2-1
Abstract
The temperature dependence of the energy gap in single crystals of CuI nTe2 has been analyzed by considering separately the contributions due to thermal expansion and electron-phonon interaction. For the first c ontribution we use a term that explicitly takes into account the tempe rature variation of the thermal expansion coefficient and the pressure variation of the band gap. Far the electron-phonon interaction, a sta tistical factor for phonons with an average temperature Theta is emplo yed. (C) 1998 Elsevier Science B.V. All rights reserved.