The effect of Dzyaloshinskii-Moriya interactions on the phase diagram and magnetic excitations of SrCu2(BO3)2

Abstract

The orthogonal dimer structure in the SrCu2(BO3)2 spin-1/2 magnet provides a realization of the Shastry-Sutherland model. Using a dimer-product variational wave function, we map out the phase diagram of the Shastry-Sutherland model including anisotropies. Based on the variational solution, we construct a bond-wave approach to obtain the excitation spectra as a function of magnetic field. The characteristic features of the experimentally measured neutron and ESR spectra are reproduced, like the anisotropy induced zero field splittings and the persistent gap at higher fields.

20 pages,15 figures

References in corpus (8)

• Bose-Einstein Condensation in Magnetic Insulators
• Theory of magnetization plateaux in the Shastry-Sutherland model
• Effective Theory of Magnetization Plateaux in the Shastry-Sutherland Lattice
• NMR evidence for the persistence of spin-superlattice above the 1/8 magnetization plateau in SrCu2(BO3)2
• First-principles investigation of symmetric and antisymmetric exchange interactions of SrCu${}_2$(BO${}_3$)${}_2$
• Effects of an external magnetic field on the gaps and quantum corrections in an ordered Heisenberg antiferromagnet with Dzyaloshinskii-Moriya anisotropy
• Magnon Dispersion and Anisotropies in SrCu${}_2$(BO${}_3$)${}_2$
• Ising phases of Heisenberg ladders in a magnetic field

Cited by in corpus (38)

• Crystals of bound states in the magnetization plateaus of the Shastry-Sutherland model
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• Topological Triplon Modes and Bound States in a Shastry-Sutherland Magnet
• Phase diagram of the Shastry-Sutherland Compound SrCu2(BO3)2 under extreme combined conditions of field and pressure
• Thermal Hall effects in quantum magnets
• Quantum magnetism on the Cairo pentagonal lattice
• Magnetic chern bands and triplon Hall effect in an extended Shastry-Sutherland model
• Dynamics and Instabilities of the Shastry-Sutherland Model
• Entangled tetrahedron ground state and excitations of the magneto-electric skyrmion material Cu${}_2$OSeO${}_3$
• Microscopic mechanism for the 1/8 magnetization plateau in SrCu_2(BO_3)_2
• Excitation spectra of disordered dimer magnets near quantum criticality
• Non-linear bond-operator theory and 1/d expansion for coupled-dimer magnets I: Paramagnetic phase
• Topological quantum paramagnet in a quantum spin ladder
• Non-linear bond-operator theory and 1/d expansion for coupled-dimer magnets II: Antiferromagnetic phase and quantum phase transition
• Semiclassical Approach to Competing Orders in Two-leg Spin Ladder with Ring-Exchange
• Theory of triplon dynamics in the quantum magnet BiCu${}_2$PO${}_6$
• Quantum criticality with emergent symmetry in the extended Shastry-Sutherland model
• Electron spin resonance for the detection of long-range spin nematic order
• Fractional magnetization plateaux of a spin-1/2 Heisenberg model on the Shastry-Sutherland lattice: effect of quantum XY interdimer coupling
• Dirac Hamiltonians for bosonic spectra
• Weyl-triplons in SrCu2(BO3)2
• The topological magnon bands in the Flux state in Sashtry-Sutherland lattice
• Dirac cones and mass terms in bosonic spectra
• Minimal model for the frustrated spin ladder system BiCu${}_2$PO${}_6$
• Detecting End-States of Topological Quantum Paramagnets via Spin Hall Noise Spectroscopy
• Effects of staggered Dzyaloshinskii-Moriya interactions in a quasi-two-dimensional Shastry-Sutherland model
• Magnetization plateaux and jumps in a frustrated four-leg spin tube under a magnetic field
• Kitaev-Heisenberg model on the star lattice: From chiral Majorana fermions to chiral triplons
• Higher-order topology and corner triplon excitations in two-dimensional quantum spin-dimer models
• Quantum spin liquid phase in the Shastry-Sutherland model revealed by high-precision infinite projected entangled-pair states
• Triplons, triplon pairs and dynamical symmetries in laser-driven Shastry-Sutherland magnets
• Anomalous thermal broadening in the Shastry-Sutherland model and SrCu${}_2($BO${}_3{)}_2$
• Formulation of spin Nernst effect for spin-nonconserving insulating magnets
• Excitation Spectra and Hard-core Thermodynamics of Bosonic Atoms In Double Well Optical Lattices
• Twisted superfluid and supersolid phases of triplons in bilayer honeycomb magnets
• Topological excitations in quasi two-dimensional quantum magnets with weak interlayer interactions
• Intrinsic suppression of topological thermal Hall effect in an exactly solvable quantum magnet
• Stabilization of Granovskii-Zhedanov scars of the XYZ quantum spin chain via non-Hermitian spin relaxation