English

Numerical study of magnetization plateaux in the spin-1/2 kagome Heisenberg antiferromagnet

Strongly Correlated Electrons 2013-10-30 v2

Abstract

We clarify the existence of several magnetization plateaux for the kagome S=1/2S=1/2 antiferromagnetic Heisenberg model in a magnetic field. Using approximate or exact localized magnon eigenstates, we are able to describe in a similar manner the plateau states that occur for magnetization per site m=1/3m=1/3, 5/95/9, and 7/97/9 of the saturation value. These results are confirmed using large-scale Exact Diagonalization on lattices up to 63 sites.

Keywords

Cite

@article{arxiv.1307.0975,
  title  = {Numerical study of magnetization plateaux in the spin-1/2 kagome Heisenberg antiferromagnet},
  author = {Sylvain Capponi and Oleg Derzhko and Andreas Honecker and Andreas M. Läuchli and Johannes Richter},
  journal= {arXiv preprint arXiv:1307.0975},
  year   = {2013}
}

Comments

8 pages; minor changes; published version