Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-03-06
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages
Scientific paper
The expressions for average densities of currents and charges induced by a weak electromagnetic field in spatially inhomogeneous systems are obtained. The case of finite temperatures is considered. It is shown that average values are separated into "basic" and "additional" parts. The former depends on electric fields, and the latter depends on derivatives of electric fields on coordinates. Semiconductor quantum wells, wires or dots may be considered as spatially inhomogeneous systems.
Korovin L. I.
Lang I. G.
Pavlov S. T.
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