Kondo impurities in nanoscopic systems: Confinement-induced regimes

Article

关键词: SINGLE-ELECTRON TRANSISTOR;    RENORMALIZATION-GROUP;    MIRAGES;    ATOM;   

DOI  :  10.1103/PhysRevB.66.115303

来源: SCIE

【 摘 要 】

We present results for Kondo impurities in nanoscopic systems. Using exact diagonalization in small clusters and Wilson's renormalization group we analyze an isolated system and a nanoscopic system weakly coupled to a macroscopic reservoir. In the latter case, new regimes not observed in macroscopic homogeneous systems are induced by the confinement of conduction electrons. These new confinement-induced regimes are very different depending on whether the Fermi energy coincides with the energy of a resonant state or lies between two quasibound states.

【 授权许可】

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