SPREADING MECHANISMS OF CHARGE CARRIERS IN GALLIUM ANTIMONID DOPED WITH IRON
GHEORGHITZA EUGEN, GUTULEAC LEONID, MELINTE VICTORIA, ZLOTEA OLGA, POSTOLACHI IGOR
TIRASPOL STATE UNIVERSITY, 5 GH. IABLOCIKIN ST., 2069, CHIŞINĂU, MOLDOVA
Abstract
Obtaining, homogenizing, and purifying technologic conditions of the gallium antimonid doped with iron and simultaneously doped with iron and tellurium. According to the research of galvanometric features of non-doped gallium antimonid and gallium antimonid doped with iron in 3 atomic % concentration for the temperature pitch of (4,2÷300K) the mechanisms of charge carriers spreading were analyzed. It is demonstrated that for experimental data explanation obtained for the U=U(T) function it is necessary to involve an additional mechanism of charge carriers spreading specific for the inclusions formed in gallium antimonid – clusters. Using the physic conceptions of this mechanism the basic characteristics of spreading the charge carriers determined by clusters were calculated.