Emergence of One-Dimensional Physics from the Distorted Shastry-Sutherland Lattice

Motivated by the on-going 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... Show more