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DC and AC Hopping Transport in Bulk Amorphous Gallium Antimonide
Author(s) -
Demishev S.V.,
Pronin A.A.,
Kondrin M.V.,
Sluchanko N.E.,
Samarin N.A.,
Ischenko T.V.,
Biskupski G.,
Zvyagin I.P.
Publication year - 2000
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(200003)218:1<67::aid-pssb67>3.0.co;2-p
Subject(s) - gallium antimonide , materials science , amorphous solid , antimonide , optoelectronics , condensed matter physics , physics , chemistry , crystallography , superlattice
We report results on ac and dc conductivities, magnetoresistance, hopping thermopower and X‐ray diffraction measurements in a‐GaSb. Parameters of localized states are determined which allow one to check quantitatively the theoretical predictions for Mott's variable range hopping transport. The existing theory is found to describe adequately the low temperature dc conductivity and hopping thermopower; however, high temperature thermopower and ac conductivity show appreciable deviations from the theoretical predictions.