Free spin-fluctuating lattice polarons as an alternative to small polarons

Authors
Nagaev, EL Farzetdinova, RM
Citation
El. Nagaev et Rm. Farzetdinova, Free spin-fluctuating lattice polarons as an alternative to small polarons, PHYS LETT A, 290(3-4), 2001, pp. 187-192
Citations number
14
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
290
Issue
3-4
Year of publication
2001
Pages
187 - 192
Database
ISI
SICI code
0375-9601(20011112)290:3-4<187:FSLPAA>2.0.ZU;2-P
Abstract
High-binding-energy small polarons contradict stability condition for the l attice. In magnetic semiconductors and manganites above the Curie point com bined low-mobility magnetic-lattice polarons are possible. The free electro n (hole) self-trapping occurs due to fluctuations of their spins following the fluctuations of the local magnetic moment, and to the lattice polarizat ion. (C) 2001 Published by Elsevier Science B.V.