Role of anisotropy in the spin-dimer compound BaCuSi2O6

Abstract

We present results of magnetisation and electron paramagnetic resonance experiments on the spin-dimer system BaCuSi2O6. Evidence indicates that the origin of anisotropic terms in the spin Hamiltonian is from magnetic dipolar interactions. Axial symmetry-breaking is on a very small energy scale of ~11 mK, confirming Bose Einstein condensation critical scaling over an extended temperature range in the vicinity of the quantum critical point.

arXiv comment4 pages, 4 figures

References in corpus (11)

• Realization of Bose-Einstein condensation of dilute magnons in TlCuCl${}_3$
• Magnetic Field-Induced Condensation of Triplons in Han Purple Pigment BaCuSi${}_2$O${}_6$
• Dimensional reduction at a quantum critical point
• Observation of Field-Induced Transverse Néel Ordering in the Spin Gap System TlCuCl${}_3$
• Temperature-dependent spin gap and singlet ground state in BaCuSi2O6
• Characteristic BEC scaling close to Quantum Critical Point in BaCuSi2O6
• Spin-resonance modes of the spin-gap magnet TlCuCl_3
• Specific Heat Study of the Field-Induced Magnetic Ordering in the Spin Gap System TlCuCl${}_3$
• Consequences of spin-orbit coupling for the Bose-Einstein condensation of magnons
• Low temperature structural phase transition and incommensurate lattice modulation in the spin gap compound BaCuSi2O6
• Spin-Triplet Excitons in the $S=1/2$ Gapped Antiferromagnet BaCuSi${}_2$O${}_6$: Electron Paramagnetic Resonance Studies

Cited by in corpus (21)

• Bose-Einstein Condensation in Magnetic Insulators
• Magnetic Quantum Tunneling: Insights from Simple Molecule-Based Magnets
• Bose-Einstein Condensation of Triplons in Ba3Cr2O8
• Multiple Magnon Modes and Consequences for the Bose-Einstein Condensed Phase in BaCuSi2O6
• Geometric Frustration and Dimensional Reduction at a Quantum Critical Point
• Ordered magnetic phases of the frustrated spin-dimer compound Ba3Mn2O8
• Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$
• Emergent Symmetry and Dimensional Reduction at a Quantum Critical Point
• Principles of crystal growth of intermetallic and oxide compounds from molten solutions
• NMR evidence for a strong modulation of the Bose-Einstein Condensate in BaCuSi${}_2$O${}_6$
• U(1)-Symmetry breaking and violation of axial symmetry in TlCuCl3 and other insulating spin systems
• Magnetic and nematic orderings in spin-1 antiferromagnets with single-ion anisotropy
• Reduced dimensionality in layered quantum dimer magnets: Frustration vs. inhomogeneous condensates
• On Josephson effects in insulating spin systems
• Magnetostriction in the Bose-Einstein Condensate quantum magnet NiCl2-4SC(NH2)2
• Tunneling and inversion symmetry in single-molecule magnets: the case of the Mn12 wheel molecule
• Stabilization of the tetragonal structure in (Ba${}_{1-x}$Sr${}_x$)CuSi${}_2$O${}_6$
• Spin-gapped magnets with weak anisotropies I: Constraints on the phase of the condensate wave function
• Temperature Dependence of the Effective Interdimeric Exchange Interaction in a Weakly Coupled Antiferromagnetic Dimeric Copper Compound
• Floating Zone Growth of Sr Substituted Han Purple: Ba${}_{0.9}$Sr${}_{0.1}$CuSi${}_2$O${}_6$
• Anomalous magnetic exchange in a dimerized quantum-magnet composed of unlike spin species