Symmetry and dimension of the magnon dispersion of inorganic spin-Peierls systems

Abstract

The data on the dispersion of the magnetic excitations of CuGeO_3 in the spin-Peierls dimerized phase are analyzed. On the basis of the lattice structure it is shown that even along the chains the $d=2$ character cannot be neglected. The symmetry of the dispersion differs from the one assumed so far. The magnetic resonance data is reinterpreted. The possibility of interchain rather than intrachain frustration is discussed.

4 pages, Revtex, to appear in PRL

Cited by in corpus (42)

• Electrodynamics of Correlated Electron Materials
• Electronic States and Magnetic Propertis of Edge-sharing Cu-O Chains
• Magnetic light scattering in low-dimensional quantum spin systems
• Reexamination of the microscopic couplings of the quasi one-dimensional antiferromagnet CuGeO_3
• Nonadiabatic Approach to Spin-Peierls Transitions via Flow Equations
• Elementary Excitations in Dimerized and Frustrated Heisenberg Chains
• Soliton Approach to Spin-Peierls Antiferromagnets: Large-Scale Numerical Results
• The microscopic spin-phonon coupling constants in CuGeO_3
• Dynamical effects of phonons on soliton binding in spin-Peierls systems
• Finite Temperature DMRG Investigation of the Spin-Peierls Transition in CuGeO${}_3$
• Magnetic Properties of (VO)_2P_2O_7 from Frustrated Interchain Coupling
• Optical spectroscopic study of the interplay of spin and charge in NaV2O5
• Thermodynamical Properties of a Spin 1/2 Heisenberg Chain Coupled to Phonons
• Observation of three-magnon light scattering in CuGeO_3
• Infrared signatures of the spin-Peierls transition in CuGeO3
• Dynamical properties of a driven dissipative dimerized $S=1/2$ chain
• Folded modes in the infrared spectra of the spin-Peierls phase of CuGeO_3
• Deconfined quantum criticality in spin-1/2 chains with long-range interactions
• Magnetic properties of (VO)_2P_2O_7: two-plane structure and spin-phonon interactions
• On the dynamics of coupled S=1/2 antiferromagnetic zig-zag chains
• Magnetic Resonance in the Spin-Peierls compound ${\alpha }^{\prime }-Na{V}_2{O}_5$
• A magnetic model for the incommensurate I phase of spin-Peierls systems
• Soliton Lattices in the Incommensurate Spin-Peierls Phase: Local Distortions and Magnetizations
• Single-hole dynamics in dimerized and frustrated spin-chains
• Excitation Spectra of Structurally Dimerized and Spin-Peierls Chains in a Magnetic Field
• Dopant-Bound Spinons in Cu_(1-x)Zn_xGeO_3
• Theory of phonon-assisted "forbidden" optical transitions in spin-gapped systems
• Far-Infrared Spectroscopy in Spin-Peierls Compound CuGeO_3 under High Magnetic Fields
• Minimal model to describe the magnetism of $CuGe{O}_3$
• Magnetic Excitations in quasi two-dimensional Spin-Peierls Systems
• Strong-coupling magnetophononics: Self-blocking, phonon-bitriplons, and spin-band engineering
• Triplet Dispersion in CuGeO_3: Perturbative Analysis
• Revival of the spin-Peierls transition in Cu_xZn_(1-x)GeO_3 under pressure
• Optical spectroscopy of pure and doped CuGeO3
• The spin-Peierls instability in spin 1/2 XY chain in the non adiabatic limit
• Ordered phases in spin-Peierls systems
• Path integrals for dimerized quantum spin systems
• Dynamical properties of the compounds CuGeO_3 and α'--NaV_2O_5 at temperatures $T\ne 0$
• Spectral Analysis of Correlated One-Dimensional Systems with Impurities
• Pulsed Magnetophononics in Gapped Quantum Magnets
• One-dimensional physics of the frustrated quantum magnet PHCC
• Phonon spectrum in the spin-Peierls phase of CuGeO${}_3$