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Emergence of one-dimensional physics from the distorted Shastry-Sutherland lattice

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Rousochatzakis,  I.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Moliner, M., Rousochatzakis, I., & Mila, F. (2011). Emergence of one-dimensional physics from the distorted Shastry-Sutherland lattice. Physical Review B, 83(14): 140414.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-8D11-3
Abstract
Motivated by the ongoing investigation of SrCu(2)(BO(3))(2) under pressure, we study a variant of the two-dimensional Shastry-Sutherland (SS) spin-1/2 model with two types of dimers. Combined with the frustration of the SS model, this modification induces, in a large parameter range, a dimensional reduction at low energies, with nearly decoupled effective S = 1 Haldane chains forming along one of the diagonals of the lattice. We also present evidence that the intermediate plaquette solid phase of the undistorted SS model remains stable in a finite region of the phase diagram.