Kondo effect induced by a magnetic field

Article

关键词: QUANTUM DOTS;    ELECTRON-TRANSPORT;    EXCHANGE MODEL;    FERMI-LIQUID;    EVEN NUMBER;    ANOMALIES;    BEHAVIOR;    COULOMB;    STATES;   

DOI  :  10.1103/PhysRevB.64.045328

来源: SCIE

【 摘 要 】

We study peculiarities of transport through a Coulomb blockade system tuned to the vicinity of the spin transition in its ground state. Such transitions can be induced in practice by application of a magnetic field. Tunneling of electrons between the dot and leads mixes the states belonging to the ground state manifold of the dot. Remarkably. both the orbital and spin degrees of freedom of the electrons are engaged in the mixing at the singlet-triplet transition point. We present a model that provides an adequate theoretical description of recent experiments with semiconductor quantum dots and carbon nanotubes.

【 授权许可】

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