Magnetoconductivity of Disordered Two-Dimensional Electron Systems

作者: P. Kleinert

DOI: 10.1002/PSSB.2221680125

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摘要: The magnetoconductivity of a disordered two-dimensional electron gas is calculated for low-intermediate magnetic field strengths. Vertex corrections from the Cooper scattering channel are treated and influence self-energy investigated. Special attention paid to cases where both, Shubnikov-de Haas oscillations negative magnetoresistance appear. Die Magnetoleitfahigkeit eines ungeordneten zweidimensionalen Elektronengases wird fur geringe und mittlere Magnetfeldstarken berechnet. Es werden Vertexkorrekturen des Cooper-Streukanals betrachtet der Einflus Selbstenergie untersucht. Besondere Aufmerksamkeit auf Falle gelegt, bei denen sowohl Oszillationen als auch ein negativer Magnetowiderstand auftreten.

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