2011/03/11 by Satoshi Yashiki, Shunsuke Kirino, Kazumasa Hattori +1
Physics and Astronomy · #Anderson impurity model #Electron #Ground state #Harmonic #Ion #Kondo effect #Kondo insulator #Phase diagram #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1143/jpsj.80.064701
15 pages, 17 figures, J. Phys. Soc. Jpn. 80 (2011) No.6 to be published
arxiv created 2011/03/11 · openalex publication_date 2011/06/03 · arxiv updated 2015/05/27 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
To discuss Kondo effects of a magnetic ion vibrating in the sea of conduction electrons, a generalized Anderson model is derived. The model includes a new channel of hybridization associated with phonon emission or absorption. In the simplest case of the localized electron orbital with the s-wave symmetry, hybridization with p-waves becomes possible. Interesting interplay among the conventional s-wave Kondo effect and the p-wave one and the Yu-Anderson type Kondo effect is found and the ground state phase diagram is determined by using the numerical renormalization group method. Two different types of stable fixed points are identified and the two-channel Kondo fixed points are generically realized on the boundary.