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Magnetoconductivity of a disordered electron system with n orbitals persite

By Sergio Garcia Magalhaes and Alba Graciela Rivas de Theumann


In the absence of a magnetic field, two formally equivalent expressions for the conductivity contribute different sets of Feynman diagrams, due to cancellations. We use this result to calculate the magnetoconductivity of the N-orbital model to 0(1/N) and we show that it coincides with the result for a single-level system

Topics: Fisica da materia condensada, Magnetocondutividade, Condutividade eletrica
Year: 2014
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