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The Electron Glass by A. Frydman, M. Ortuño, M. Pollak

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5

dc Conductivity

This chapter presents a survey of the dc conductivity in electron glasses within the linear response regime. A deep understanding of the processes responsible for conductivity in the steady state is necessary for attempting to treat the out-of equilibrium phenomena of the conductivity. Special emphasis is given to the effect of electron–electron interactions, which lead to the Coulomb gap and to correlated electronic transitions. These are essential for understanding the glassy properties in these materials.

Section 5.1 is devoted to review the main experimental results on dc conductivity, with emphasis on materials where glassy effects are observed. The different elements needed for conductivity theory in an electron glass ...

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