TY - JOUR
T1 - The lattice evolution of the spin-Peierls material CuGeO3 studied by neutron scattering
AU - Fujita, M.
AU - Arai, M.
AU - Ubukata, K.
AU - Ohta, H.
AU - Mino, M.
AU - Motokawa, M.
AU - Knight, K.
AU - Ibberson, R.
AU - Forsyth, J. B.
AU - Bennington, S. M.
AU - Akimitsu, O.
AU - Fujita, J.
PY - 1995/8/1
Y1 - 1995/8/1
N2 - 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.
AB - 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.
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U2 - 10.1016/0921-4526(95)00132-S
DO - 10.1016/0921-4526(95)00132-S
M3 - Article
AN - SCOPUS:18344419405
SN - 0921-4526
VL - 213-214
SP - 288
EP - 290
JO - Physica B: Physics of Condensed Matter
JF - Physica B: Physics of Condensed Matter
IS - C
ER -