Spinless Impurities in High-TcCuprates: Kondo-Like Behavior

Spinless impurities and Kondo-like behavior in strongly correlated electron systems

The physics of Kondo impurities in graphene.

This article summarizes our understanding of the Kondo effect in graphene, primarily from a theoretical perspective. We shall describe different ways to create magnetic moments in graphene, either by adatom deposition or via defects. For dilute moments, the theoretical description is in terms of effective Anderson or Kondo impurity models coupled to graphene's Dirac electrons. We shall discuss ...

Friedel Oscillations of Kondo Impurities: a Comparison

Recently Affleck et al. derived the existence of Friedel oscillations in the presence of a Kondo impurity. They supported their analytic derivation by numerical calculations using Wilson’s renormalization approach (NRG). In this paper the size of the Friedel oscillations is calculated with the FAIR method (Friedel Artificially Inserted Resonance) which has been recently developed. The results o...

Kondo temperature of magnetic impurities at surfaces.

Based on the experimental observation that only the close vicinity of a magnetic impurity at metal surfaces determines its Kondo behavior, we introduce a simple model which explains the Kondo temperatures observed for cobalt adatoms at the (111) and (100) surfaces of Cu, Ag, and Au. Excellent agreement between the model and scanning tunneling spectroscopy experiments is demonstrated. The Kondo ...

Transmission phase shifts of Kondo impurities

Assaf Carmi,1,2 Yuval Oreg,1 Micha Berkooz,2 and David Goldhaber-Gordon1,3 1Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel 2Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel 3Department of Physics, Stanford University, Stanford, California 94305, USA (Received 16 July 2012; published 20 September 2...