title: Local physics of magnetization plateaux in the Shastry-Sutherland model.
abstract: 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 spin pattern, satisfying 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 SrCu2(BO3)2.
authors.affiliation: Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
authors.forename: L
authors.initials: L
authors.lastname: Isaev
authors.forename: G
authors.initials: G
authors.lastname: Ortiz
authors.forename: J
authors.initials: J
authors.lastname: Dukelsky