The lattice dynamics of LaMnO3: the role of the orbital degrees of freedom / Nikiforov AE,Popov SE // APPLIED PHYSICS A-MATERIALS SCIENCE \& PROCESSING. - 2002. - V. 74, l. 2, S. - P. S1743-S1745.

ISSN/EISSN:

0947-8396 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The lattice dynamics of regular LaMnO3 is calculated within a shell model with pairwise interionic interaction potentials and with a Jahn-Teller (JT) contribution included in the energy and the dynamical matrix of the crystal. A correlation is made between Raman spectral lines and lattice vibrations. The positions of some lines in the Raman spectrum are found to depend heavily on the linear JT coupling constant V-e The effect of the JT coupling on the phonon dispersion of the LO mode in the Delta Brillouin-zone direction is investigated. A comparison with experiments is carried out.

Author keywords:

нет данных

DOI:

10.1007/s003390201767

Web of Science ID:

ISI:000181219600267

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	DEC
Note	International Conference on Neutron Scattering, MUNICH, GERMANY, SEP 09-13, 2001
Publisher	SPRINGER-VERLAG
Address	175 FIFTH AVE, NEW YORK, NY 10010 USA
Language	English
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Applied
ResearcherID-Numbers	Nikiforov, Anatoliy/L-4436-2016
Number-of-Cited-References	10
Usage-Count-Since-2013	6
Journal-ISO	Appl. Phys. A-Mater. Sci. Process.
Doc-Delivery-Number	649QN