Magnetization plateaux in an extended Shastry-Sutherland model

2008/10/09 by K. P. Schmidt, Kai Phillip Schmidt, Julien Dorier +3
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Algebraic structures and combinatorial models #Heisenberg model #Invariant (physics) #Limit (mathematics) #Magnetic field #Magnetization #Physics of Superconductivity and Magnetism #Quantum #Unitary state #cond-mat.str-el

paper · pdf · doi:10.1088/1742-6596/145/1/012047

8 pages, Proceedings of the HFM2008 Conference

arxiv created 2008/10/09 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study an extended two-dimensional Shastry-Sutherland model in a magnetic field where besides the usual Heisenberg exchanges of the Shastry-Sutherland model two additional SU(2) invariant couplings are included. Perturbative continous unitary transformations are used to determine the leading order effects of the additional couplings on the pure hopping and on the long-range interactions between the triplons which are the most relevant terms for small magnetization. We then compare the energy of various magnetization plateaux in the classical limit and we discuss the implications for the two-dimensional quantum magnet SrCu 2 (BO 3 ) 2 .

Citations

• Theory of spin-density profile and lattice distortion in the magnetization plateaus ofSrCu2(BO3)2
• NMR Evidence for the Persistence of a Spin Superlattice Beyond the1/8Magnetization Plateau inSrCu2(BO3)2
• The Structure of Operators in Effective Particle-Conserving Models
• Field dependence of the quantum ground state in the Shastry-Sutherland system SrCu 2 (BO 3 ) 2
• Excitations in One-DimensionalS=12Quantum Antiferromagnets
• Dispersion and Symmetry of Bound States in the Shastry-Sutherland Model
• Supersolid Phase Induced by Correlated Hopping in Spin-1/2Frustrated Quantum Magnets
• Dzyaloshinski-Moriya Interaction in the 2D Spin Gap SystemSrCu2(BO3)2