Electronic structure and phase separation in LaxMnO3 films (0.83 <= x <= 1.10): Optical and magnetooptical data / Sukhorukov YP,Loshkareva NN,Gan'shina EA,Mostovshchikova EV,Rodin IK,Kaul AR,Gorbenko OY,Bosak AA,Moskvin AS,Zenkov EV // JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS. - 2003. - V. 96, l. 2. - P. 257-267.

ISSN/EISSN:

1063-7761 / нет данных

Type:

Article

Abstract:

The variations in the electronic structure and the evolution of phase separation as a result of creation of vacancies or excess of lanthanum in lanthanum manganites are studied on the basis of analysis of optical and magnetic properties of LaxMnO3 epitaxial films (0.83 less than or equal to x less than or equal to 1.10) in the fundamental absorption range. The Kerr effect, the temperature dependences of resistivity, optical density, and magnetoabsorption of light indicate the charge and magnetic phase separation in the films. The fine structure observed in the spectrum is attributed to spectral overlapping of electron transitions with charge transfer and geometrical resonances reflecting an inhomogeneous nanoscopic structure of the films, which strongly depends on stoichiometry and stresses emerging during film deposition. It is shown that, in contrast to bulk polycrystals, the gradient of stresses over the film thickness significantly affects the phase separation in the films. (C) 2003 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

CONDUCTIVITY SPECTRA; LA1-XSRXMNO3; MANGANITES; MN

DOI:

10.1134/1.1560398

Web of Science ID:

ISI:000181441300009

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	CONDUCTIVITY SPECTRA; LA1-XSRXMNO3; MANGANITES; MN
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
ResearcherID-Numbers	Sukhorukov, Yuri/J-3588-2013 BOSAK, Alexei/J-7895-2013 Loshkareva, Natalia/K-1587-2013 Mostovshchikova, Elena/J-3623-2013
ORCID-Numbers	Sukhorukov, Yuri/0000-0002-8874-1019 Loshkareva, Natalia/0000-0002-1701-8712 Mostovshchikova, Elena/0000-0001-8527-3195
Number-of-Cited-References	27
Usage-Count-Since-2013	5
Journal-ISO	J. Exp. Theor. Phys.
Doc-Delivery-Number	653MX