COMPOSITION DEPENDENCE OF THE ENERGY-GAP OF ZNXMN1-XIN2SE4 AND OPTICAL-ABSORPTION SPECTROSCOPY

Authors
LUENGO J JOSHI NV
Citation
J. Luengo et Nv. Joshi, COMPOSITION DEPENDENCE OF THE ENERGY-GAP OF ZNXMN1-XIN2SE4 AND OPTICAL-ABSORPTION SPECTROSCOPY, Materials letters, 26(1-2), 1996, pp. 47-50
Citations number
12
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
26
Issue
1-2
Year of publication
1996
Pages
47 - 50
Database
ISI
SICI code
0167-577X(1996)26:1-2<47:CDOTEO>2.0.ZU;2-9
Abstract
Composition dependence of the band gap of ZnxMn1-xIn2Se4 alloys has be en studied at 300 K and 77 K for the first time. It was found that for smaller concentrations of Mn the band gap varies linearly with compos ition and for higher concentrations it shows quadratic dependence. The same trend of dependence was observed for both temperatures. Absorpti on spectra do reveal the structure located on the higher energy side o f the main band gap which has been interpreted on the basis of valence band structure, like, crystal field and spin-orbit interactions.