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Ground-State Phase Diagram for the Three-Dimensional Orthogonal-Dimer System

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arxiv cond-mat/0009266 v1 pith:NCRTI3SA submitted 2000-09-18 cond-mat.str-el

Akihisa Koga This is my paper · ORCID
classification cond-mat.str-el
keywords phasecompounddiagramdimerorthogonal-dimersrcusystemthree-dimensional
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abstract

We investigate quantum phase transitions in the three-dimensional orthogonal-dimer system of the compound $\rm SrCu_2(BO_3)_2$ by means of the series expansion technique. We then discuss the phase diagram where the dimer phase, the Haldane phase, the frustration-induced disordered phase and the magnetically ordered phase compete with each other. It is found that the compound $\rm SrCu_2(BO_3)_2$ is located in the dimer phase close to the phase boundary.

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Cited by 1 Pith paper

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  1. Exact ground state on the 3D analogue of the Shastry-Sutherland model

    cond-mat.str-el 2025-07 conditional novelty 6.0 of 10

    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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