Abstract
CuGeO3 is an inorganic compound which possesses a spin-Peierls transition. We have studied the crystal structure and the phonon dynamics of CuGeO3 by neutron scattering. We found that a lattice anomaly starts to evolve significantly above the transition temperature, Tsp, and there is a drastic change below Tsp. The phonon mode over a wide energy range changes drastically at high temperature. Therefore we conclude that the inherent structural instability in the crystal structure provides favorable conditions for the lattice-spin interaction and induces the spin-Peierls transition, i.e. lattice dimerization.
Original language | English |
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Pages (from-to) | 288-290 |
Number of pages | 3 |
Journal | Physica B: Physics of Condensed Matter |
Volume | 213-214 |
Issue number | C |
DOIs | |
Publication status | Published - 1995 Aug 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering