1995/04/07 by Alexander O. Gogolin, Gogolin, Alexander O.
Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9504028
4 pages, ReVTeX; Ref.[14] - corrected
arxiv created 1995/04/12 · arxiv updated 2009/11/30
Impurity ions with orbitally degenerate ground electronic configuration embedded in metals are subjects to both the Kondo effect and the Jahn-Teller instability. While increasing the Jahn-Teller coupling, one passes, from the region of parameters where the perturbation theory is applicable, through a complicated intermediate region, to a region where phonons, localized electrons and conduction electrons form a coherent state.