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arXiv:1307.0975 · Physical Review B

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

Sylvain Capponi, Oleg Derzhko, A. Honecker, Andreas Martin Läuchli, Johannes Richter

Published Oct 18, 2013• 122 citations
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Abstract

We clarify the existence of several magnetization plateaus for the kagome $S=\frac{1}{2}$ 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 $m=\frac{1}{3}$, $\frac{5}{9}$, and $\frac{7}{9}$ of the saturation value. These results are confirmed using large-scale exact diagonalization on lattices up to 63 sites.

DOI
10.1103/physrevb.88.144416

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