New Inorganic Spin-Peierls Compound NaV2O5Evidenced by X-Ray and Neutron Scattering
- 15 February 1997
- journal article
- letter
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 66 (2) , 326-329
- https://doi.org/10.1143/jpsj.66.326
Abstract
In this letter we report lattice dimerization and spin-gap formation of NaV 2 O 5 below its spin-Peierls transition temperature T sp =35.3 K, in which there are V 4+ ( S =1/2) linear chains along the b axis of its orthorhombic structure. A single-crystal X-ray scattering experiment shows superlattice reflections with a lattice modulation vector q =(1/2, 1/2, 1/4) . Inelastic neutron scattering from a powder sample at T =7 K clearly demonstrates a gap energy of 9.8 meV at a scattering vector | Q |=1.0 Å -1 corresponding to the reciprocal lattice point (1, 1/2, 0).Keywords
This publication has 23 references indexed in Scilit:
- Temperature dependence of the spin-Peierls energy gap and anomalous line shapes in CuGePhysical Review B, 1996
- Characterization of the spin-Peierls gap in CuGeO3 by means of inelastic neutron scatteringPhysica B: Condensed Matter, 1995
- Magnetic excitations in CuGeO3Physica B: Condensed Matter, 1995
- Evidence for a Singlet-Triplet Transition in Spin-Peierls System CuGePhysical Review Letters, 1995
- Neutron-scattering study on the spin-Peierls transition in a quasi-one-dimensional magnetPhysical Review B, 1994
- Dimerization ofin the Spin-Peierls StatePhysical Review Letters, 1994
- Electron Diffraction Study of an Inorganic Spin-Peierls System CuGeO3Journal of the Physics Society Japan, 1994
- Structural Evidence for a Spin Peierls Ground state in the Quasi-One-Dimensional Compound CuGePhysical Review Letters, 1994
- Observation of the spin-Peierls transition in linear(spin-1/2) chains in an inorganic compoundPhysical Review Letters, 1993
- Zur Kristallstruktur von CuGeO3Monatshefte für Chemie / Chemical Monthly, 1967