Crystal Distortion and the Two-Channel Kondo Effect

Abstract

We study a simple model of the two-channel Kondo effect in a distorted crystal. This model is then used to investigate the interplay of the Kondo and Jahn-Teller effects, and also the Kondo effect in an impure crystal. We find that the Jahn-Teller interaction modifies the characteristic energy scale of the system below which non-Fermi-liquid properties of the model become apparent. The modified energy scale tends to zero as the limit of a purely static Jahn-Teller effect is approached. We find also that the non-Fermi-liquid properties of the quadrupolar Kondo effect are not stable against crystal distortion caused by impurities.

11 pages

References in corpus (5)

• Bosonization and Strongly Correlated Systems
• On the Emery-Kivelson Solution of the two channel Kondo problem
• Selection Rules for Two Channel Kondo Models of U and Ce ions in Metals
• Toulouse Points and Non-Fermi Liquid States in the Mixed Valence Regime of the Generalized Anderson Model
• Prospects for Non--Fermi--Liquid Behavior of a Two Level Impurity in a Metal

Cited by in corpus (1)

• Tuning spin one channel to exotic orbital two-channel Kondo effect in ferrimagnetic composites of LaNiO3 and CoFe2O4