Electrical conductivity of undoped and rare-earth-doped high-resistivity GaSe crystals

Autor:	Sh. A. Allakhverdiev, A. Sh. Abdinov, R. F. Babaeva, R. M. Rzaev
Rok vydání:	2009
Předmět:	Materials science Condensed matter physics General Chemical Engineering Gallium selenide Rare earth Doping Metals and Alloys Mineralogy Conductivity Inorganic Chemistry High resistivity Electrical resistivity and conductivity Materials Chemistry Voltage
Zdroj:	Inorganic Materials. 45:723-727
ISSN:	1608-3172 0020-1685
DOI:	10.1134/s0020168509070036
Popis:	The time-dependent conductivity of nominally undoped and rare-earth-doped (N R≃10−5 to 10−1 at % Gd, Dy, or Ho) high-resistivity gallium selenide crystals has been measured under various conditions. At a relatively low applied voltage and T ≤ 150 K, the conductivity of the crystals reaches a steady-state value rather slowly. When a voltage above a certain threshold is applied for a long time at T ≤ 300 K, the material exhibits electric fatigue. An energy-band model is proposed which provides qualitative explanation of the results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d768024810bbbc1c9021e699ef46217 https://doi.org/10.1134/s0020168509070036 Zobrazit plný text záznamu Plný text ve formátu PDF