Interaction corrections at intermediate temperatures: Dephasing time

Article

关键词: ELECTRON-GAS;    MAGNETORESISTANCE;    SCATTERING;    LIFETIME;    SYSTEMS;    ENERGY;    METALS;   

DOI  :  10.1103/PhysRevB.65.180202

来源: SCIE

【 摘 要 】

We calculate the temperature dependence of the weak-localization correction in a two-dimensional system at arbitrary relation between temperature T and the elastic mean free time. We describe the crossover in the dephasing time tau(Phi)(T) between the high-temperature, 1/tau(Phi)similar or equal toT(2)ln T, and the low-temperature 1/tau(Phi)similar or equal toT behaviors. The prefactors in these dependences are not universal, but are determined by the Fermi-liquid constant characterizing the spin exchange interaction.

【 授权许可】

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