Colloquium on October 20th, 2008

Peter Wölfle
Universität Karlsruhe

The Kondo effect: From magnetic alloys to nanoelectronics

The Kondo effect is a paradigm of strong electronic correlations in solids. Although investigated since the 1960s the Kondo effect continues to surprise us. In magnetic metallic solids most of the recent interest is concentrated on heavy fermion compounds and quantum phase transitions therein. In nanostructures the Kondo effect is ubiquitous and causes changes in the transport properties by orders of magnitude. The behavior of the Kondo effect far from equilibrium has been clarified only recently, and offers new insights into the workings of quantum many body systems.