Fractons in vibrational spectrum of the PbMg1/3Nb2/3O3 relaxor ferroelectric

Authors
Gvasaliya, SN Lushnikov, SG Sashin, IL Siny, IG
Citation
Sn. Gvasaliya et al., Fractons in vibrational spectrum of the PbMg1/3Nb2/3O3 relaxor ferroelectric, CRYSTALLO R, 44(2), 1999, pp. 250-254
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
44
Issue
2
Year of publication
1999
Pages
250 - 254
Database
ISI
SICI code
1063-7745(199903/04)44:2<250:FIVSOT>2.0.ZU;2-B
Abstract
The lattice dynamics of the PbMg1/3Nb2/3O3 relaxor ferroelectric has been s tudied by the method of inelastic neutron scattering in the temperature ran ge 30-300 K. The analysis of the low-frequency part of the generalized dens ity of vibrational states provided the identification of the fracton mode i n the vibrational spectrum of PbMg1/3Nb2/3O3. Possible causes of the anomal ous temperature dependence of the generalized density of the vibrational st ates are discussed.