Numerical and analytical calculations of the hall effect, thermpower, ac and dc conductivity for energy-dependent hopping systems

We report direct numerical calculation of the dc Holstein's 3-site hopping process in an energy dependent model. The 3-site generalisation of the Extended Pair Approximation (EPA) agrees well with the numerical data. The EPA is used to calculate thermopower and ac and dc conductivity for flat a...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1983, Vol.59, p.45-48
Main Authors: Butcher, P.N., McInnes, J.A., Summerfield, S.
Format: Article
Language:English
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Summary:We report direct numerical calculation of the dc Holstein's 3-site hopping process in an energy dependent model. The 3-site generalisation of the Extended Pair Approximation (EPA) agrees well with the numerical data. The EPA is used to calculate thermopower and ac and dc conductivity for flat and exponential densities of states. Some comparison is made with experimental data.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(83)90521-5