Neutron scattering study of the field-induced soliton lattice in CuGeO${}_3$

Abstract

CuGeO${}_3$ undergoes a transition from a spin-Peierls phase to an incommensurate phase at a critical field of $H_c\approx 12.5$ T. In the high-field phase a lattice of solitons forms, with both structural and magnetic components, and these have been studied using neutron scattering techniques. Our results provide direct evidence for a long-ranged magnetic soliton structure which has both staggered and uniform magnetizations, and with amplitudes that are broadly in accord with theoretical estimates. The magnetic soliton width, $\Gamma$, and the field dependence of the incommensurability, $\delta k_{sp}$, are found to agree well with theoretical predictions.

5 pages, 3 figures

References in corpus (2)

• NMR imaging of the soliton lattice profile in the spin-Peierls compound CuGeO_3
• Soliton Lattices in the Incommensurate Spin-Peierls Phase: Local Distortions and Magnetizations

Cited by in corpus (8)

• Field-induced quantum soliton lattice in a frustrated two-leg spin-1/2 ladder
• Nuclear Magnetic Resonance in High Magnetic Field: Application to Condensed Matter Physics
• Triplon current generation in solids
• Far-Infrared Spectroscopy in Spin-Peierls Compound CuGeO_3 under High Magnetic Fields
• Excitations with fractional spin less than 1/2 in frustrated magnetoelastic chains
• Excitations of the field-induced soliton lattice in CuGeO3
• Enhancement of magnetic order in the incommensurate phase of Mg-doped CuGeO${}_3$
• Spin-phonon coupled modes in the incommensurate phases of doped CuGeO${}_3$