Schwinger boson symmetric spin liquids of Shastry-Sutherland model

Abstract

Motivated by recent experimental and numerical evidences of deconfined quantum critical point and quantum spin-liquid states in spin-$1/2$ Heisenberg model on Shastry-Sutherland lattice, we studied possible symmetric spin liquid states and their proximate ordered states under Schwinger boson formalism. We found a symmetric gapped $Z_2$ spin-liquid state for intermediate model parameter $0.66<J_1/J_2<0.71$ under mean-field approximation. The Schwinger boson mean-field picture is partially supported by exact-diagonalization and self-consistent spin wave theory results.

arXiv comment23 pages, 20 figures

References in corpus (32)

• Quantum Spin Liquid States
• "Deconfined" quantum critical points
• Quantum Orders and Symmetric Spin Liquids
• Evidence for deconfined quantum criticality in a two-dimensional Heisenberg model with four-spin interactions
• Quantum magnetism and criticality
• Short-ranged RVB physics, quantum dimer models and Ising gauge theories
• Spin Liquid States on the Triangular and Kagome Lattices: A Projective Symmetry Group Analysis of Schwinger Boson States
• Classifying fractionalization: symmetry classification of gapped Z2 spin liquids in two dimensions
• Quantum Phase Transitions in the Shastry-Sutherland Model for $\mathbf{SrC}{\mathbf{u}}_2(\mathbf{B}{\mathbf{O}}_3{)}_2$
• Tensor network study of the Shastry-Sutherland model in zero magnetic field
• Observation of a 4-spin Plaquette Singlet State in the Shastry-Sutherland compound SrCu2(BO3)2
• A quantum magnetic analogue to the critical point of water
• Quantum phases of SrCu2(BO3)2 from high-pressure thermodynamics
• Phase Diagram of the quadrumerized Shastry-Sutherland Model
• Various series expansions for a Heisenberg antiferromagnet model for SrCu${}_2$(BO${}_3$)${}_2$
• Quantum Criticality and Spin Liquid Phase in the Shastry-Sutherland model
• First order transition between magnetic order and valence-bond order in a 2D frustrated Heisenberg model
• Signatures of a Deconfined Phase Transition on the Shastry-Sutherland Lattice: Applications to Quantum Critical SrCu${}_2$(BO${}_3$)${}_2$
• Proximate deconfined quantum critical point in SrCu2(BO3)2
• Symmetry enhanced first-order phase transition in a two-dimensional quantum magnet
• Competition between intermediate plaquette phases in SrCu${}_2$(BO${}_3$)${}_2$ under pressure
• Flux expulsion and greedy bosons: frustrated magnets at large N
• Competing Spin-Gap Phases in a Frustrated Quantum Spin System in Two Dimensions
• Rise and fall of plaquette order in Shastry-Sutherland magnet revealed by pseudo-fermion functional renormalization group
• Self-consistently renormailzed spin-wave theory of layered ferromagnets on honeycomb lattice
• Schwinger boson spin liquid states on square lattice
• Plaquette Singlet Transition, Magnetic Barocaloric Effect, and Spin Supersolidity in the Shastry-Sutherland Model
• Quantum spin liquid phase in the Shastry-Sutherland model detected by an improved level spectroscopic method
• First-order transition between the plaquette valence bond solid and antiferromagnetic phases of the Shastry-Sutherland model
• Third boundary of the Shastry-Sutherland Model by Numerical Diagonalization
• Transition between algebraic and ${\mathbb{Z}}_2$ quantum spin liquids at large $N$
• Large-Scale Numerical-Diagonalization Study of the Shastry-Sutherland Model

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