Dynamics of composite Haldane spin chains in IPA-CuCl3

Abstract

Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of ``composite'' Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.

4 pages 4 figures

References in corpus (9)

• Quantum Magnetic Excitations from Stripes in Copper-Oxide Superconductors
• The susceptibility and excitation spectrum of (VO)${}_2$P${}_2$O${}_7$ in ladder and dimer chain models
• Equivalence of the antiferromagnetic Heisenberg ladder to a single $S=1$ chain
• Bound states of magnons in the S=1/2 quantum spin ladder
• Equal Time Correlations in Haldane Gap Antiferromagnets
• Haldane-gap excitations in the low-H_c 1-dimensional quantum antiferromagnet NDMAP
• Massive triplet excitations in a magnetized anisotropic Haldane spin chain
• Quasi-elastic neutron scattering in the high-field phase of a Haldane antiferromagnet
• Dynamics of an anisotropic Haldane antiferromagnet in strong magnetic field

Cited by in corpus (82)

• Bose-Einstein Condensation in Magnetic Insulators
• One-Dimensional Quantum Liquids: Beyond the Luttinger Liquid Paradigm
• Spontaneous Magnon Decays
• Higgs mode and its decay in a two dimensional antiferromagnet
• Dynamical structure factor of triangular-lattice antiferromagnet
• Superdiffusion in spin chains
• Field-induced Tomonaga-Luttinger liquid phase of a two-leg spin-1/2 ladder with strong leg interactions
• Evidence of a magnetic Bose glass in IPA-Cu(Cl0.95Br0.05)3 from neutron diffraction
• Strong quantum interactions prevent quasiparticle decay
• Quantum Magnetism in Minerals
• Spectral and thermodynamic properties of a strong-leg quantum spin ladder
• Phase diagram of hard-core bosons on clean and disordered 2-leg ladders: Mott insulator - Luttinger liquid - Bose glass
• Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders
• Dirty-boson physics with magnetic insulators
• Order and excitations in large-$S$ kagomé-lattice antiferromagnets
• Symmetric and asymmetric excitations of a strong-leg quantum spin ladder
• Scattering particles in quantum spin chains
• Quantum spin correlations in an organometallic alternating sign chain
• Quasiparticle-continuum level repulsion in a quantum magnet
• Instability of Magnons in Two-dimensional Antiferromagnet at High Magnetic Fields
• Adapted continuous unitary transformation to treat systems with quasiparticles of finite lifetime
• Field-induced decay dynamics in square-lattice antiferromagnet
• Magnon damping in the zigzag phase of the Kitaev-Heisenberg-$\Gamma$ model on a honeycomb lattice
• Two-particle decay and quantum criticality in dimerized antiferromagnets
• Cluster-based Haldane state in edge-shared tetrahedral spin-cluster chain: Fedotovite K${}_2$Cu${}_3$O(SO${}_4$)${}_3$
• Field-induced dynamical properties of the $XXZ$ model on a honeycomb lattice
• Neutron scattering evidence for isolated spin-1/2 ladders in (C${}_5$D${}_{12}$N)${}_2$CuBr${}_4$
• Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$
• "Quasi-particle breakdown" in the quasi-one-dimensional Ising ferromagnet CoNb${}_2$O${}_6$
• Decay of quasiparticles in quantum spin liquids
• Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet
• Muon spin relaxation and rotation study on the solid solution of the two spin-gap systems (CH3)2CHNH3-CuCl3 and (CH3)2CHNH3-CuBr3
• Magnetism of CuX2 frustrated chains (X = F, Cl, Br): the role of covalency
• Long-lived magnons throughout the Brillouin zone of the strong-leg spin ladder (C${}_7$H${}_{10}$N)${}_2$CuBr${}_4$
• Incommensurate dynamic correlations in the quasi-two-dimensional spin liquid BiCu2PO6
• Non-linear bond-operator theory and 1/d expansion for coupled-dimer magnets I: Paramagnetic phase
• $S$ = 1/2 ferromagnetic-antiferromagnetic alternating Heisenberg chain in a zinc-verdazyl complex
• Low Temperature Dynamics of Magnons in a Spin-1/2 Ladder Compound
• Effect of pressure on the quantum spin ladder material IPA-CuCl3
• Strong quantum effects in an almost classical antiferromagnet on a kagome lattice
• μSR-detection of the soft-mode toward the exotic magnetic ground state in bond-disordered quantum spin system IPA-Cu(Cl${}_{0.35}$Br${}_{0.65}$)${}_3$
• Magnon decay in gapped quantum spin systems
• Crystals for neutron scattering studies of quantum magnetism
• 1H-NMR Study on the Magnetic Order in the Mixture of Two Spin Gap Systems (CH3)2CHNH3CuCl3 and (CH3)2CHNH3CuBr3
• Bose-glass, superfluid, and rung-Mott phases of hard-core bosons in disordered two-leg ladders
• Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C${}_9$H${}_{18}$N${}_2$CuBr${}_4$
• Microscopic model for Bose-Einstein condensation and quasiparticle decay
• Excitations in a quantum spin liquid with random bonds
• Decay and renormalization of a longitudinal mode in a quasi-two-dimensional antiferromagnet
• Disorder instability of the magnon condensate in a frustrated spin ladder
• Alternating Heisenberg Spin-1/2 Chains in a Transverse Magnetic Field
• Topological Hybrids of Magnons and Magnon Bound Pairs
• A modified triplet-wave expansion method applied to the alternating Heisenberg chain
• Thermal conductivity of IPA-CuCl_3: Evidences of ballistic magnon transport and limited applicability of the Bose-Einstein condensation model
• Anharmonic magnon excitations in noncollinear and charge-ordered RbFe${}^{2+}$Fe${}^{3+}$F${}_6$
• Na-ion dynamics in Quasi-1D compound NaV2O4
• Evidence for pressure induced unconventional quantum criticality in the coupled spin ladder antiferromagnet C${}_9$H${}_{18}$N${}_2$CuBr${}_4$
• Bond Randomness Induced Magnon Decoherence in a Spin-1/2 Ladder Compound
• Spontaneous decay of a soft optical phonon in the relaxor ferroelectric PbMg${}_{1/3}$Nb${}_{2/3}$O${}_3$
• Magnetic Bose glass phases of coupled antiferromagnetic dimers with site dilution
• Zeeman split Kramers doublets in spin-supersolid candidate Na${}_2$BaCo(PO${}_4$)${}_2$
• Dynamics of the two-dimensional S=1/2 dimer system (C5H6N2F)2CuCl4
• Impurity-induced magnetic order in the mixture of two spin gap systems (CH3)2CHNH3CuCl3 and (CH3)2CHNH3CuBr3
• Field-induced spin nematic Tomonaga-Luttinger liquid of the $S=1/2$ spin ladder system with the anisotropic ferromagnetic rung interaction
• Cluster-Based Haldane States in Spin-1/2 Cluster Chains
• Anomalously large damping of long-wavelength quasiparticles caused by long-range interaction
• The tunable quantum spin ladder Cu(Qnx)(Cl${}_{(1-x)}$Br${}_x$)${}_2$
• Static magnetic and ESR spectroscopic properties of the dimer-chain antiferromagnet BiCoPO${}_5$
• ${}^1$H-NMR Study of the Random Bond Effect in the Quantum Spin System (CH${}_3$)${}_2$CHNH${}_3$Cu(Cl${}_x$Br${}_{1-x}$)${}_3$
• Neutron powder diffraction study of NaMn${}_2$O${}_4$ and Li${}_{0.92}$Mn${}_2$O${}_4$: New insights on spin-charge-orbital ordering
• Magnon mode truncation in a rung-dimerized asymmetric spin ladder
• Spin-Peierls transition to a Haldane phase
• Breakdown of long-wavelength magnons in cubic antiferromagnets with dipolar forces at small temperature
• Triplet Dimerization Crossover Driven by Magnetic Frustration in In2VO5
• Evidence for strong correlations at finite temperatures in the dimerized magnet Na${}_2$Cu${}_2$TeO${}_6$
• Bond Disorder in Even-Leg Heisenberg Ladders
• Quasi-fractionalization of spin in a cluster-based Haldane state supported by chirality of a triangular spin tube
• Interacting triplons in frustrated spin ladders: Binding and decay in BiCu${}_2$PO${}_6$
• Field-induced ordering in a random-bond quantum spin ladder compound with weak anisotropy
• Anisotropic Band-Split Magnetism in Magnetostrictive CoFe${}_2$O${}_4$
• Dynamics and field-induced order in the layered spin $S=1/2$ dimer system (C${}_5$H${}_6$N${}_2$F)${}_2$CuCl${}_4$
• \muSR-dtected Soft mode toward a Possible Phase Transition in disordered spin gap system (CH3)2CHNH3-Cu(ClxBr1-x)3