Ti3+ Jahn-Teller polarons and bipolarons in BaTiO3

Authors
Kohne, S Schirmer, OF Hesse, H Kool, TW Vikhnin, V
Citation
S. Kohne et al., Ti3+ Jahn-Teller polarons and bipolarons in BaTiO3, J SUPERCOND, 12(1), 1999, pp. 193-195
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF SUPERCONDUCTIVITY
ISSN journal
08961107 → ACNP
Volume
12
Issue
1
Year of publication
1999
Pages
193 - 195
Database
ISI
SICI code
0896-1107(199902)12:1<193:TJPABI>2.0.ZU;2-N
Abstract
In high quality BaTiO3 crystals without trapping defects conduction electro ns form Ti3+ polarons, their stabilization energy being caused by a Jahn-Te ller effect. Depending on locally fluctuating potentials, tunable by uniaxi al stress, small, intermediate, and banding electrons are identified by EPR . There are indications that also bipolarons are present.