Kondo Effect in Mesoscopic Quantum Dots

Details Kondo Effect in Mesoscopic Quantum Dots Kondo Effect in Mesoscopic Quantum Dots

2006-11-17

arxiv.org/abs/cond-mat/0611480v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

50 pages, 18 figures, contribution to the Handbook of Magnetism and Advanced Magnetic Materials, Vol. 5, Wiley

Scientific paper

A dilute concentration of magnetic impurities can dramatically affect the transport properties of an otherwise pure metal. This phenomenon, known as the Kondo effect, originates from the interactions of individual magnetic impurities with the conduction electrons. Nearly a decade ago, the Kondo effect was observed in a new system, in which the magnetic moment stems from a single unpaired spin in a lithographically defined quantum dot, or artificial atom. The discovery of the Kondo effect in artificial atoms spurred a revival in the study of Kondo physics, due in part to the unprecedented control of relevant parameters in these systems. In this review we discuss the physics, origins, and phenomenology of the Kondo effect in the context of recent quantum dot experiments.

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