Disorder and relaxation mode in the lattice dynamics of PbMg$_{1/3}$Nb$_{2/3}$O$_3$ relaxor ferroelectric

Simple item page
dc.creatorGvasaliya, S. N.
dc.creatorLushnikov, S. G.
dc.creatorRoessli, B.
dc.date2003-11-05
dc.date.accessioned2026-07-07T02:54:36Z
dc.date.available2026-07-07T02:54:36Z
dc.descriptionThe low-energy part of vibration spectrum in PbMg$_{1/3}$Nb$_{2/3}$O$_3$ relaxor ferroelectric was studied by inelastic neutron scattering. We observed the coexistence of a resolution-limited central peak with strong quasielastic scattering. The line-width of the quasielastic component follows a $Γ_0+Dq^2$ dependence. We find that $Γ_0$ is temperature-dependent. The relaxation time follows the Arrhenius law well. The presence of a relaxation mode associated with quasi-elastic scattering in PMN indicates that order-disorder behaviour plays an important rôle in the dynamics of diffuse phase transitions.
dc.identifierhttps://arxiv.org/abs/cond-mat/0311097
dc.identifierhttp://arxiv.org/abs/cond-mat/0311097
dc.identifierPhys. Rev. B 69, 092105 (2004).
dc.identifierdoi:10.1103/PhysRevB.69.092105
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22615
dc.subjectMaterials Science
dc.titleDisorder and relaxation mode in the lattice dynamics of PbMg$_{1/3}$Nb$_{2/3}$O$_3$ relaxor ferroelectric
dc.typetext

Files

Collections

arXiv