Effects of staggered Dzyaloshinskii-Moriya interactions in a quasi-two-dimensional Shastry-Sutherland model

Abstract

Frustrated quantum spin systems exhibit exotic physics induced by external magnetic field with anisotropic interactions. Here, we study the effect of non-uniform Dzyaloshinskii-Moriya (DM) interactions on a quasi-two-dimensional Shastry-Sutherland lattice using a matrix product states (MPS) algorithm. We first recover the magnetization plateau structure present in this geometry and then we show that both interdimer and intradimer DM interactions significantly modify the plateaux. The non-number-conserving intradimer interaction smoothens the shape of the magnetization curve, while the number-conserving interdimer interaction induces different small plateaux, which are signatures of the finite size of the system. Interestingly, the interdimer DM interaction induces chirality in the system. We thus characterize these chiral phases with particular emphasis to their robustness against intradimer DM interactions.

arXiv comment7 pages, 6 figures

References in corpus (26)

• The density-matrix renormalization group in the age of matrix product states
• Artificial gauge potentials for neutral atoms
• Light-induced gauge fields for ultracold atoms
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• Studying Two Dimensional Systems With the Density Matrix Renormalization Group
• Magnetic Superstructure in the Two-Dimensional Quantum Antiferromagnet SrCu2(BO3)2
• Density matrix renormalization group algorithms with a single center site
• Magnetization plateaus in frustrated antiferromagnetic quantum spin models
• Magnetization of SrCu2(BO3)2 in ultrahigh magnetic fields up to 118 T
• Crystals of bound states in the magnetization plateaus of the Shastry-Sutherland model
• Magnetostriction and magnetic texture to 97.4 Tesla in frustrated SrCu2(BO3)2
• Theory of magnetization plateaux in the Shastry-Sutherland model
• Magnetization plateaus of SrCu_2(BO_3)_2 from a Chern-Simons theory
• Effective Theory of Magnetization Plateaux in the Shastry-Sutherland Lattice
• Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase
• Field dependence of the quantum ground state in the Shastry-Sutherland system SrCu${}_2$(BO${}_3$)${}_2$
• First-order quantum phase transition in the orthogonal-dimer spin chain
• Infinite series of magnetization plateaus in the frustrated dimer-plaquette chain
• The effect of Dzyaloshinskii-Moriya interactions on the phase diagram and magnetic excitations of SrCu2(BO3)2
• The antiferromagnetic spin 1/2 chain with competing dimers and plaquettes: Numerical versus exact results
• Magneto-thermal properties of the Heisenberg-Ising orthogonal-dimer chain with triangular XXZ-clusters
• Far-infrared spectroscopy of spin excitations and Dzyaloshinskii-Moriya interactions in a Shastry-Sutherland compound SrCu${}_2$(BO${}_3$)$_2
• Microscopic mechanism for the 1/8 magnetization plateau in SrCu_2(BO_3)_2
• Exact solution for quantum spin-1/2 Ising-Heisenberg orthogonal-dimer chain with the Heisenberg intra-dimer and Ising inter-dimer interactions
• Exotic magnetisation plateaus in a quasi-2D Shastry-Sutherland model
• Unconventional magnetization plateaus in a Shastry-Sutherland spin tube

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• Signatures of the finite-temperature mirror symmetry breaking in the $S$=1/2 Shastry-Sutherland model
• A near-term quantum simulation of the transverse field Ising model hints at Glassy Dynamics
• Triplons, triplon pairs and dynamical symmetries in laser-driven Shastry-Sutherland magnets