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

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 نشر من قبل Capponi Sylvain
 تاريخ النشر 2013
  مجال البحث فيزياء
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We clarify the existence of several magnetization plateaux for the kagome $S=1/2$ 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 $m=1/3$, $5/9$, and $7/9$ of the saturation value. These results are confirmed using large-scale Exact Diagonalization on lattices up to 63 sites.



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