High temperature thermal conductivity of 2-leg spin-1/2 ladders

X. Zotos

doi:10.1103/PhysRevLett.92.067202

High temperature thermal conductivity of 2-leg spin-1/2 ladders

Strongly Correlated Electrons 2009-11-10 v1 Statistical Mechanics

Authors: X. Zotos

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Abstract

Based on numerical simulations, a study of the high temperature, finite frequency, thermal conductivity $\kappa(\omega)$ of spin-1/2 ladders is presented. The exact diagonalization and a novel Lanczos technique are employed.The conductivity spectra, analyzed as a function of rung coupling, point to a non-diverging $dc-$ limit but to an unconventional low frequency behavior. The results are discussed with perspective recent experiments indicating a significant magnetic contribution to the energy transport in quasi-one dimensional compounds.

Keywords

thermal conductivity spin-1/2 ladders exact diagonalization Lanczos technique rung coupling magnetic contribution

Cite

@article{arxiv.cond-mat/0304629,
  title  = {High temperature thermal conductivity of 2-leg spin-1/2 ladders},
  author = {X. Zotos},
  journal= {arXiv preprint arXiv:cond-mat/0304629},
  year   = {2009}
}

Comments

4 pages, 4 figures

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