Lattice dynamics of CuGeO₃ : inelastic neutron scattering and model calculations

2002/05/10 by Braden, M., Reichardt, W., Hennion, B. +2 · 1 citation
#FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el)

paper · doi:10.48550/arxiv.cond-mat/0205215

Abstract

The lattice dynamics in CuGeO₃ has been analyzed by the combination of inelastic neutron scattering studies and lattice dynamical model calculations. We report an almost complete set of dispersion curves along the three orthorhombic directions and along [101]. The dispersion of branches associated with the modes directly involved in the spin-Peierls transition allows to explain the particular propagation vector of the structural distortion in the dimerized phase.

Cited by

• Phonon spectrum in the spin-Peierls phase of CuGeO₃

Related

• Phonon spectrum in the spin-Peierls phase of CuGeO₃
• Superexchange and lattice distortions in the spin--Peierls system CuGeO3
• Spin-Peierls Transition in CuGeO₃: Critical, Tricritical, or Mean Field?
• Lattice dynamics in the charge-density-wave metal at a van-Hove-singularity filling
• Spin-Peierls transition of the dimer phase of the J₁-J₂ model:\n Energy cusp and CuGeO₃ thermodynamics