Persistent current induced by magnetic impurities
نویسندگان
چکیده
منابع مشابه
Quasiparticle poisoning and Josephson current fluctuations induced by Kondo impurities.
We introduce a toy model that allows us to study the physical properties of a spin impurity coupled to the electrons in the superconducting island. We show that, when the coupling of the spin is of the order of the superconducting gap Delta, two almost degenerate subgap states are formed. By computing the Berry phase that is associated with the superconducting phase rotations in this model, we ...
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ژورنال
عنوان ژورنال: Zeitschrift für Physik B Condensed Matter
سال: 1997
ISSN: 0722-3277,1431-584X
DOI: 10.1007/s002570050341