Magnetorefractive effect in La{sub 0.7}Ca{sub 0.3}MnO{sub 3} in the infrared spectral range

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776110090037· OSTI ID:21443400

Telegin, A V ^[1]; Gan'shina, E A ^[2]; Naumov, S V; Kostromitina, N V; Elokhina, L V ^[1]; Gonzalez, J ^[3]

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1. Russian Academy of Sciences, Institute of Metal Physics, Ural Division (Russian Federation)
2. Moscow State University (Russian Federation)
3. Universidad del Pais Vasco, Departamento Fisica de Materiales, Facultad de Quimica (Spain)

The reflection and magnetic reflection spectra, magnetic resistance, electrical properties, and equatorial Kerr effect in La{sub 0.7}Ca{sub 0.3}MnO{sub 3} crystals have been complexly investigated. The measurements have been performed in wide temperature and spectral ranges in magnetic fields up to 3.5 kOe. It has been found that magnetic reflection is a high-frequency response in the infrared spectral range to the colossal magnetore-sistance near the Curie temperature. Correlation between the field and temperature dependences of the magnetic reflection and colossal magnetoresistance has been revealed. The previously developed theory of the magnetorefractive effect for metallic systems makes it possible to explain the experimental data at the qualitative level. Both demerits of the theory of the magnetorefractive effect in application to the magnets and possible additional mechanisms responsible for the magnetic reflection are discussed.

• OSTI ID: 21443400
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 111, Issue 3; Other Information: DOI: 10.1134/S1063776110090037; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
CALCIUM COMPOUNDS
CORRELATIONS
CRYSTALS
CURIE POINT
KERR EFFECT
LANTHANUM COMPOUNDS
MAGNETIC FIELDS
MAGNETORESISTANCE
MANGANATES
REFLECTION
TEMPERATURE DEPENDENCE
ALKALINE EARTH METAL COMPOUNDS
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
MANGANESE COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPECTRA
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE