Photoconductivity of the Pb0.75Sn0.25Te : In alloy in an alternating electric fieldстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Kinetics of variations in the components of total impedance for single-crystal Pb0.75Sn0.25Te:In samples is investigated upon switching on and switching off of the illumination source at temperature 4.2 K and frequency 10(6) Hz. The calculation carried out in the context of representation of equivalent circuits showed that the parameters of a parallel RpCp chain, which approximates the sample behavior, correlate strictly. In the region of low resistances R-p , the values of C-p increase abruptly following the law C-p proportional to R-p(-2). It is of no importance what method of decreasing the resistance is used-heating of the sample or its illumination at low temperature. The obtained results were analyzed taking into account the contribution of the impurity subsystem to conductivity and the possible manifestation of Maxwell-Wagner-type effects.