JAHN-TELLER DYNAMICS AND PROPERTIES OF THE MANGANITES

Authors
KRESIN VZ WOLF SA
Citation
Vz. Kresin et Sa. Wolf, JAHN-TELLER DYNAMICS AND PROPERTIES OF THE MANGANITES, Philosophical magazine. B. Physics of condensed matter. Statistical mechanics, electronic, optical and magnetic, 76(2), 1997, pp. 241-245
Citations number
22
Categorie Soggetti
Physics, Applied",Mechanics,"Physics, Condensed Matter","Material Science
Journal title
Philosophical magazine. B. Physics of condensed matter. Statistical mechanics, electronic, optical and magnetic → ACNP
ISSN journal
13642812
Volume
76
Issue
2
Year of publication
1997
Pages
241 - 245
Database
ISI
SICI code
1364-2812(1997)76:2<241:JDAPOT>2.0.ZU;2-N
Abstract
The ferromagnetic transition temperature and the oxygen isotope effect in the doped manganites are evaluated using a model based on the dyna mic Jahn-Teller effect on the bridging oxygen ion (the ion between Mn3 + and Mn4+). The diabatic representation is used to estimate the hoppi ng time of the extra electron in the double exchange model. The transi tion temperature depends strongly on the Franck-Condon factor and, the refore, on the oxygen mass.