Electro-reflectance near the fundamental edge of GaSe

Autor:	Y. Suzuki, Yoshihiro Hamakawa, Hiroshi Kimura, S. Ibuki, Hiroyoshi Komiya
Rok vydání:	1970
Předmět:	Condensed matter physics Impurity Chemistry Exciton Electric field General Materials Science General Chemistry Atomic physics Edge (geometry) Condensed Matter Physics Ground state Single crystal Reflectivity
Zdroj:	Journal of Physics and Chemistry of Solids. 31:2217-2222
ISSN:	0022-3697
DOI:	10.1016/0022-3697(70)90236-2
Popis:	Electro-reflectance of GaSe single crystal has been investigated in the spectral region from 1·97 to 2·13 eV. By analyzing the electro-reflectance signals with Kramers-Kronig relation, the energies of the exciton levels and the fundamental edge are assigned both at 300 and 90°K. An additional new structure is observed below the ground state exciton. Electric field and temperature dependences of the structure have been explored and a possibility of the existence of some local states (defect or impurity state) is postulated and discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::97e37ebcf8fb5beb8be9666dfea2254d https://doi.org/10.1016/0022-3697(70)90236-2 Zobrazit plný text záznamu