Peculiarities of low-frequency internal friction near the ferroelastic phase transition in Ba2NaNb5O15

Authors
Gridnev, SA Biryukov, AV Khodorov, AA
Citation
Sa. Gridnev et al., Peculiarities of low-frequency internal friction near the ferroelastic phase transition in Ba2NaNb5O15, FERROELECTR, 233(1-2), 1999, pp. 159-164
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
233
Issue
1-2
Year of publication
1999
Pages
159 - 164
Database
ISI
SICI code
0015-0193(1999)233:1-2<159:POLIFN>2.0.ZU;2-S
Abstract
The internal friction and shear elastic constant features in the vicinity o f ferroelastic phase transition point at a frequency of similar to 20 Hz in the Ba2NaNb5O15 crystal were investigated. The behaviour of complex elasti city near the upper ferroelastic Curie point under the different external F orces are discussed in terms of lattice defect dynamics.