Quasiparticles of spatially anisotropic triangular antiferromagnets in a magnetic field
Strongly Correlated Electrons
2009-11-05 v2 Statistical Mechanics
Abstract
The spectral properties of the spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice in a magnetic field are investigated using a weak-interchain-coupling approach combined with exact solutions of a chain. Dominant modes induced by interchain interactions in a magnetic field behave as quasiparticles which show distinctive features such as anomalous incommensurate ordering and high-energy modes. In terms of them, various unusual features observed in the anisotropic triangular antiferromagnet Cs_2CuCl_4 in a magnetic field are quantitatively explained in a unified manner.
Keywords
Cite
@article{arxiv.0909.4283,
title = {Quasiparticles of spatially anisotropic triangular antiferromagnets in a magnetic field},
author = {Masanori Kohno},
journal= {arXiv preprint arXiv:0909.4283},
year = {2009}
}
Comments
4 pages, 3 figures