Tunneling effects on the impurity spectral function in coupled asymmetric quantum wires

Article

关键词: 2-DIMENSIONAL ELECTRON-GAS;    DIMENSIONAL FERMI LIQUIDS;    PLASMON MODES;    EXCITATIONS;    EXCITONS;    SYSTEMS;    SCATTERING;    SINGULARITIES;    SUBBAND;    METALS;   

DOI  :  10.1103/PhysRevB.68.165304

来源: SCIE

【 摘 要 】

The impurity spectral function is studied in coupled double quantum wires at finite temperatures. Simple anisotropy in the confinement direction of the wires leads to finite nondiagonal elements of the impurity spectral function matrix. These nondiagonal elements are responsible for tunneling effects and result in a pronounced extra peak in the impurity spectral function up to temperatures as high as 20 K.

【 授权许可】

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