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AC Conductivity of Highly Inhomogeneous Semiconductors
Author(s) -
Chaikovskii I. A.,
Shmelev G. M.,
German A. I.
Publication year - 1985
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/pssb.2221290140
Subject(s) - semiconductor , conductivity , condensed matter physics , absorption (acoustics) , connection (principal bundle) , phase (matter) , constant (computer programming) , electron , materials science , physics , mathematics , quantum mechanics , optics , geometry , computer science , programming language
The ac absorption constant of an inhomogeneous semiconductor is calculated without any assumptions of electron density fluctuations to be small. A generalized Herring's method is used for calculating the effective conductivity. The method leads to a closed formula in the case of a heterogeneous two‐phase system. The presence of a maximum in the frequency dependence of absorption is explained and its connection with the system parameters is determined.