Polaronic effect in materials with ferroelectric phase transitions

Authors
Malozovsky, YM Fan, JD Bagayoko, D Wang, JT
Citation
Ym. Malozovsky et al., Polaronic effect in materials with ferroelectric phase transitions, INT J MOD B, 13(29-31), 1999, pp. 3555-3559
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792 → ACNP
Volume
13
Issue
29-31
Year of publication
1999
Pages
3555 - 3559
Database
ISI
SICI code
0217-9792(199912)13:29-31<3555:PEIMWF>2.0.ZU;2-X
Abstract
We studied polaron effects due to the interaction of an electron with optic al phonons in ferroelectrics with a layered crystal structure. We evaluated the polaron self-energy using the effective T-matrix. We showed that trans ition from the large radius polaron to the small radius polaron is controll ed by the interlayer interaction or interlayer spacing. We also found that the polaron interaction with the fluctuations of polarizability near the Cu rie temperature causes polaron localization.