A 3D deformation of the pyrochlore lattice is shown to have an exact dimer-singlet ground state for J2 >= 2 in the quantum spin-1/2 model, with classical phase diagrams matching the 2D Shastry-Sutherland results.
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Exact ground state on the 3D analogue of the Shastry-Sutherland model
A 3D deformation of the pyrochlore lattice is shown to have an exact dimer-singlet ground state for J2 >= 2 in the quantum spin-1/2 model, with classical phase diagrams matching the 2D Shastry-Sutherland results.