Effects of non-magnetic doping upon orbital and magnetic structures of lanthanum manganite / Gonchar Liudmila E.,Firsin Anton A.,Nikiforov Anatoliy E.,Popov Sergey E. // . - 2012. - V. 190, l. . - P. 671-674.

ISSN/EISSN:
1012-0394 / нет данных
Type:
Proceedings Paper
Abstract:
The theoretical model of the crystal structure of lanthanum manganite doped by non-Jahn-Teller ions is proposed. In order to describe the changes in the crystal structure and orbital state of manganese ions subsystem, we use modified shell model and virtual crystal model. The orbital ordering collapse is explained in terms of dynamical Jahn-Teller effect. The model of superexchange interaction helps to find the values of antiferromagnetic and ferromagnetic exchange parameters for dynamical and static orbital states of interacting ions. The magnetic structure of LaMn1-xGaxO3 is explained and magnetic resonance spectrum is predicted.
Author keywords:
manganite; Jahn-Teller effect; orbital ordering; non-magnetic doping; magnetic structure; magnetic resonance
DOI:
10.4028/www.scientific.net/SSP
Web of Science ID:
ISI:000308061600160
Соавторы в МНС:
Другие поля
Поле Значение
Editor Perov, N and Rodionova, V
Booktitle MAGNETISM AND MAGNETIC MATERIALS V
Series Solid State Phenomena
Note 5th Moscow International Symposium on Magnetism (MISM 2011), Lomonosov Moscow State Univ, Moscow, RUSSIA, AUG 21-25, 2011
Organization Moscow State Univ; Russian Fdn Bas Res; Dynasty Fdn; Russian Acad Sci; Kapitza Inst Phys Problems; 147th Comm Japanese Soc Promot Sci; NT-MDT Nanotechnol; Sci Council RAS Condenced-matter Phys; Russian Acad Sci, Inst Theoret Appl Electromagnet; Magnet Soc Japan
Publisher TRANS TECH PUBLICATIONS LTD
Address LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
Language English
Research-Areas Materials Science; Physics
Web-of-Science-Categories Materials Science, Multidisciplinary; Physics, Multidisciplinary
Author-Email lyudmila.gonchar@usu.ru firsin\_anton@bk.ru anatoliy.nikiforov@usu.ru sergey.popov@usu.ru
ResearcherID-Numbers Nikiforov, Anatoliy/L-4436-2016 Gonchar, Liudmila/L-6878-2016
ORCID-Numbers Gonchar, Liudmila/0000-0002-5872-3565
Number-of-Cited-References 10
Usage-Count-Since-2013 3
Doc-Delivery-Number BBS65