Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-06-26
Phys. Rev. Lett. 103, 177201 (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, LaTeX 2e
Scientific paper
We address the physical mechanism responsible for the emergence of magnetization plateaux in the Shastry-Sutherland model. By using a hierarchical mean-field approach we demonstrate that a plateau is stabilized in a certain {\it spin pattern}, satisfying {\it local} commensurability conditions derived from our formalism. Our results provide evidence in favor of a robust local physics nature of the plateaux states, and are in agreement with recent NMR experiments on $\scbo$.
Dukelsky Jorge
Isaev L.
Ortiz Gerardo
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