Effect of assisted hopping on the formation of local moments in magnetic impurities and quantum dots

Details Effect of assisted hopping on the formation of local moments in magnetic impurities and quantum dots Effect of assisted hopping on the formation of local moments in magnetic impurities and quantum dots

2002-12-04

arxiv.org/abs/cond-mat/0212080v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.67.195104

Assisted hopping effects in magnetic impurities and quantum dots are analyzed. The magnitude of the assisted hopping term in a quantum dot in the limit of large level spacing is comparable to other corrections induced by the electron-electron interactions. Assisted hopping leads to differences between conductance peaks associated to the same level, and, when the effect is sufficiently strong, to local pairing correlations.

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