Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders
Strongly Correlated Electrons
2009-10-30 v2
Abstract
Magnetization processes of spin-1/2 Heisenberg ladders are studied using strong-coupling expansions, numerical diagonalization of finite systems and a bosonization approach. We find that the magnetization exhibits plateaux as a function of the applied field at certain rational fractions of the saturation value. Our main focus are ladders with 3 legs where plateaux with magnetization one third of the saturation value are shown to exist.
Keywords
Cite
@article{arxiv.cond-mat/9707090,
title = {Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders},
author = {D. C. Cabra and A. Honecker and P. Pujol},
journal= {arXiv preprint arXiv:cond-mat/9707090},
year = {2009}
}
Comments
5 pages REVTeX, 4 PostScript figures included using psfig.sty; this is the final version to appear in Phys. Rev. Lett