Critical Nature of Non-Fermi Liquid in Spin 3/2 Multipolar Kondo Model
Strongly Correlated Electrons
2009-11-11 v1 Statistical Mechanics
Abstract
A multipolar Kondo model of an impurity spin S_I=3/2 interacting with conduction electrons with spin s_c=3/2 is investigated using boundary conformal field theory. A two-channel Kondo (2CK) -like non-Fermi liquid (NFL) under the particle-hole symmetry is derived explicitly using a ``superspin absorption'' in the sector of a hidden symmetry, SO(5). We discuss the difference between the usual spin-1/2 2CK NFL fixed point and the present one. In particular, we find that, unlike the usual 2CK model, the low temperature impurity specific heat is proportional to temperature.
Keywords
Cite
@article{arxiv.cond-mat/0512336,
title = {Critical Nature of Non-Fermi Liquid in Spin 3/2 Multipolar Kondo Model},
author = {Kazumasa Hattori},
journal= {arXiv preprint arXiv:cond-mat/0512336},
year = {2009}
}
Comments
4 pages, 2 figures