Magnetic Excitations in the S=1/2 Alternating Chain Compound (VO)_2P_2O_7

Abstract

Magnetic excitations in an array of (VO)_2P_2O_7 single crystals have been measured using inelastic neutron scattering. Until now, (VO)_2P_2O_7 has been thought of as a two-leg antiferromagnetic Heisenberg spin ladder with chains running in the a-direction. The present results show unequivocally that (VO)_2P_2O_7 is best described as an alternating spin-chain directed along the crystallographic b-direction. In addition to the expected magnon with magnetic zone-center energy gap Δ= 3.1 meV, a second excitation is observed at an energy just below 2Δ. The higher mode may be a triplet two-magnon bound state.

4 pages, postscript figures

References in corpus (1)

• Double gap and solitonic excitations in the spin-Peierls chain CuGeO3

Cited by in corpus (86)

• The Kernel Polynomial Method
• Experiments on Ladders Reveal a Complex Interplay between a Spin-Gapped Normal State and Superconductivity
• Magnetic light scattering in low-dimensional quantum spin systems
• Spin dynamics and transport in gapped one-dimensional Heisenberg antiferromagnets at nonzero temperatures
• A Study of the S=1/2 Alternating Chain using Multiprecision Methods
• Various series expansions for a Heisenberg antiferromagnet model for SrCu${}_2$(BO${}_3$)${}_2$
• Field-Induced Magnetic Ordering in the Quantum Spin System KCuCl${}_3$
• Bound states of magnons in the S=1/2 quantum spin ladder
• beta-Cu2V2O7: a spin-1/2 honeycomb lattice system
• Weak ferromagnetism in antiferromagnets: Fe${}_2$O${}_3$ and La${}_2$CuO${}_4$
• Triplet Waves in a Quantum Spin Liquid
• Enhancement of Antiferromagnetic Correlations Induced by Nonmagnetic Impurities: Origin and Predictions for NMR Experiments
• Spin gap in the Quasi-One-Dimensional S=1/2 Antiferromagnet: Cu2(1,4-diazacycloheptane)2Cl4
• Quasi-1D spin-1/2 Heisenberg magnets in their ordered phase: correlation functions
• Elementary Excitations in Dimerized and Frustrated Heisenberg Chains
• Frustration-Induced Two Dimensional Quantum Disordered Phase in Piperazinium Hexachlorodicuprate
• Excitation spectrum of the S=1/2 quantum spin ladder with frustration: elementary quasiparticles and many-particle bound states
• Quasi-two-dimensional hole ordering and dimerized state in the CuO2-chain layers in Sr14Cu24O41
• Frustrated 3-Dimensional Quantum Spin Liquid in CuHpCl
• Magnetic structure and Dzyaloshinskii-Moriya interaction in the $S=1/2$ helical-honeycomb antiferromagnet $\alpha$-Cu${}_2$V${}_2$O${}_7$
• Anomalous thermal conductivity of frustrated Heisenberg spin-chains and ladders
• Efimov effect in quantum magnets
• Coexistence of double alternating antiferromagnetic chains in (VO)_2P_2O_7 : NMR study
• Structural and magnetic dimers in the spin-gapped system CuTe2O5
• Quantum spin correlations in an organometallic alternating sign chain
• Peculiar long-range superexchange in Cu2A2O7 (A = P, As, V) as a key element of the microscopic magnetic model
• Witnessing Entanglement and Quantum Correlations in Condensed Matter: A Review
• Magnetic Properties of (VO)_2P_2O_7 from Frustrated Interchain Coupling
• Frustrated couplings between alternating spin-1/2 chains in AgVOAsO4
• Spectral properties of the dimerized and frustrated $S=1/2$ chain
• Magnetic structure and ferroelectric polarization of MnWO4 investigated by density functional calculations and classical spin analysis
• Modeling of the Magnetic Susceptibilities of the Ambient- and High-Pressure Phases of (VO)_{2}P_{2}O_{7}
• Large quantum fluctuations in the strongly coupled spin-1/2 chains of green dioptase: a hidden message from birds and trees
• Magnetic and thermal properties of 4f-3d ladder-type molecular compounds
• Spin-chain magnetism and uniform Dzyaloshinsky-Moriya anisotropy in BaV${}_3$O${}_8$
• Magnetic properties of Ag(2)VOP(2)O(7): an unexpected spin dimer system
• Thermodynamics of spin-1/2 tetrameric Heisenberg antiferromagnetic chain
• Mixed Heisenberg Chains. II. Thermodynamics
• Magnetic model for A2CuP2O7 (A = Na, Li) revisited: 1D versus 2D behavior
• Magnetic properties of the low-dimensional spin-1/2 magnet α-Cu_2As_2O_7
• Paramagnetic and antiferromagnetic resonances in the diamagnetically diluted Haldane magnet PbNi2V2O8
• Neutron scattering from a coordination polymer quantum paramagnet
• A switchable controlled-NOT gate in a spin-chain NMR quantum computer
• Magnetoelastic coupling and spin excitations in the spin-gap system (VO)${}_2$P${}_2$O${}_7$: A Raman scattering study
• Magnetic properties of (VO)_2P_2O_7: two-plane structure and spin-phonon interactions
• Spectrum of elementary and collective excitations in the dimerized S=1/2 Heisenberg chain with frustration
• Alternating-spin-chain compound AgVOAsO${}_4$ probed by ${}^{75}$As NMR
• Thermodynamic Properties of the Dimerised and Frustrated S=1/2 Chain
• On the dynamics of coupled S=1/2 antiferromagnetic zig-zag chains
• Heisenberg Dimer Single Molecule Magnets in a Strong Magnetic Field
• Structure and magnetism of Cr2BP3O12: Towards the quantum-classical crossover in a spin-3/2 alternating chain
• Ab initio modeling of Bose-Einstein condensation in Pb2V3O9
• Local magnetic structures induced by inhomogeneities of the lattice in S=1/2 bond-alternating chains and response to time-dependent magnetic field with a random noise
• Uniform spin chain physics arising from NCN bridges in CuNCN: surprises on the way from copper oxides to their nitride analogs
• Single-hole dynamics in dimerized and frustrated spin-chains
• Excitation Spectra of Structurally Dimerized and Spin-Peierls Chains in a Magnetic Field
• Electronic and magnetic structure of CsV${}_2$O${}_5$
• BiCu${}_2$VO${}_6$: a new narrow-band spin-gap material
• Spin anisotropy effects in dimer single molecule magnets
• Spiral ground state in the quasi-two-dimensional spin-1/2 system Cu2GeO4
• Comparative study between two quantum spin systems KCuCl${}_3$ and TlCuCl${}_3$
• Symmetries and Triplet Dispersion in a Modified Shastry-Sutherland Model for SrCu_2(BO_3)_2
• Strong-coupling magnetophononics: Self-blocking, phonon-bitriplons, and spin-band engineering
• One and Two Dimensional Spin Systems in the Regime Close to Deconfinement of Spinons
• NMR, magnetization, and heat capacity studies of the uniform spin-1/2 chain compound Bi6V3O16
• Field dependent thermodynamics and Quantum Critical Phenomena in the dimerized spin system Cu2(C5H12N2)2Cl4
• Triplet Dispersion in CuGeO_3: Perturbative Analysis
• Two types of alternating spin-$\frac{1}{2}$ chains and their field-induced transitions in $\epsilon$-LiVOPO${}_4$
• Magnons and continua in a magnetized and dimerized spin-1/2 chain
• Effects of Two Energy Scales in Weakly Dimerized Antiferromagnetic Quantum Spin Chains
• Ab initio investigation of VOSeO3, a spin gap system with coupled spin dimers
• Refined Spin Wave Model and Multi-magnon Bound States in $L{i}_{2}Cu{O}_2$
• Effect of Spin-1 Impurities in Dimerized Heisenberg Chains
• Magnetic Bound States in Dimerized Quantum Spin Systems
• Magnon-mediated NMR quantum gates in a 1-D antiferromagnet
• Magnetic-field-induced tunability of spin Hamiltonians: Resonances and Efimov states in Yb${}_2$Ti${}_2$O${}_7$
• Magnetic properties of the spin $S=1/2$ Heisenberg chain with hexamer modulation of exchange
• Quantum spin ladder with dynamic phonons. Bound states of magnons and phonons
• Hole dynamics and photoemission in a t-J model for SrCu_2(BO_3)_2
• One-Dimensional Quantum Magnetism in the S = 1/2 Mo(V) system, KMoOP2O7
• Charge ordering and ferrimagnetism in the strongly correlated $\beta$-V${}_2$PO${}_5$ single crystal
• Thermodynamics of a Spin-1/2 Chain Coupled to Einstein Phonons
• Zero-temperature study of a tetrameric spin-$1/2$ chain in a transverse magnetic field
• One-dimensional magnetism in synthetic Pauflerite, $\beta$-VOSO${}_4$
• NMR characterization of spin-1/2 alternating antiferromagnetic chains in the high-pressure phase of (VO)2P2O7
• Inter-chain Interactions, Multi-magnon condensation and Strain effect in chain compound NaVOPO${}_4$