New Universality Class in the S=1/2 Fibonacci Heisenberg Chains
Strongly Correlated Electrons
2007-05-23 v2 Disordered Systems and Neural Networks
Abstract
Low energy properties of the S=1/2 antiferromagnetic Heisenberg chains with Fibonacci exchange modulation are studied using the real space renormalization group method for strong exchange modulation. It is found that the ground state of this model belongs to a new universality class with logarithmically divergent dynamical exponent which is neither like Fibonacci XY chains nor like XY chains with relevant aperiodicity.
Keywords
Cite
@article{arxiv.cond-mat/0403602,
title = {New Universality Class in the S=1/2 Fibonacci Heisenberg Chains},
author = {Kazuo Hida},
journal= {arXiv preprint arXiv:cond-mat/0403602},
year = {2007}
}
Comments
4 pages, 3 figures