Long-range magnetic order and interchain interactions in the $S=2$ chain system MnCl${}_3$(bpy)

Abstract

A compound with very weakly interacting chains, MnCl${}_3$(bpy), has attracted a great deal of attention as a possible $S=2$ Haldane chain. However, long-range magnetic order of the chains prevents the Haldane gap from developing below 11.5~K. Based on a four-sublattice model, a description of the antiferromagnetic resonance (AFMR) spectrum up to frequencies of 1.5~THz and magnetic fields up to 50~T indicates that the interchain coupling is indeed quite small but that the Dzaloshinskii-Moriya interaction produced by broken inversion symmetry is substantial (0.12~meV). In addition, the antiferromagnetic, nearest-neighbor interaction within each chain (3.3~meV) is significantly stronger than previously reported. The excitation spectrum of this $S=2$ compound is well-described by a $1/S$ expansion about the classical limit.

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References in corpus (17)

• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Entanglement spectrum of a topological phase in one dimension
• Symmetry protection of topological order in one-dimensional quantum spin systems
• Neel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets
• The phase diagram of the anisotropic spin-2 XXZ model: an infinite system DMRG study
• Experimental Evidence of a Haldane Gap in an S = 2 Quasi-linear Chain Antiferromagnet
• One-dimensional magnetic fluctuations in the spin-2 triangular lattice α-NaMnO2
• Haldane, Large-D and Intermediate-D States in an S=2 Quantum Spin Chain with On-Site and XXZ Anisotropies
• Parity quantum numbers in the Density Matrix Renormalization Group
• Magnetic order and low-energy excitations in the quasi-one-dimensional antiferromagnet CuSe${}_2$O${}_5$ with staggered fields
• Quantum Critical Spin-2 Chain with Emergent SU(3) Symmetry
• Intermediate Haldane phase in spin-2 quantum chains with uniaxial anisotropy
• Quantum Entanglement and Topological Order in Hole-Doped Valence Bond Solid States
• All spin-1 topological phases in a single spin-2 chain
• Susceptibility and Dzyaloshinskii-Moriya interaction in the Haldane gap compound NENP
• Antiferromagnetic Ordering in MnF(salen)
• Experimental study of MnCl3(C12H8N2) - an S = 2 Heisenberg antiferromagnetic chain

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