Polar centers and unusual properties of manganites with nonisovalent substitution / Moskvin AS,Ovchinnikov AS // JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - 1998. - V. 185, l. 2. - P. 174-176.

ISSN/EISSN:

0304-8853 / нет данных

Type:

Article; Proceedings Paper

Abstract:

We introduce briefly the principal ideas of a new model approach to the rare-earth manganites like LaMnO3 as to systems where the nonisovalent substitution promotes the local disproportionation reaction with the formation of the pseudo-Jahn-Teller (PJT)-centers phase being a system of the local triplet bosons moving in a lattice of the PJT-centers {[}MnO68-](JT). This situation is similar to that of the cuprates like YBa2Cu3O6+x, La2-xSrxCuO4, La2CuO4+delta or nickellites like La2NiO4+delta. The unconventional properties of the substituted manganites like La1-xSrxMnO3 are connected with an active interplay of the charge, spin, orbital and local structural (PJT-) modes with taking account of the strong charge inhomogeneity; multi-granularity, static and dynamic phase separation and percolation phenomena. (C) 1998 Elsevier Science B.V. All rights reserved.

Author keywords:

correlated electron system; Intermediate valence; magnetoresistance - giant

DOI:

10.1016/S0304-8853(97)00262-X

Web of Science ID:

ISI:000073909200004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN
Note	ICM 97 Meeting, CAIRNS, AUSTRALIA, 1997
Organization	ICM
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Condensed Matter
ORCID-Numbers	Ovchinnikov, Alexander/0000-0002-1173-9260
Number-of-Cited-References	4
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	1
Journal-ISO	J. Magn. Magn. Mater.
Doc-Delivery-Number	ZQ849