Artículos de revistas
Contactless measurement of colossal magnetoresistance in La1-xSrxMnO3 using the infrared magnetorefractive effect
Fecha
2004-05-01Registro en:
Journal of Magnetism and Magnetic Materials. Amsterdam: Elsevier B.V., v. 272, p. 1740-1741, 2004.
0304-8853
10.1016/j.jmmm.2003.12.737
WOS:000222236800044
2115942621694174
Autor
Univ York
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The magnetorefractive effect (MRE) has been used for the first time to study the magnetotransport properties of La1-xSrxMnO3 perovskite materials. A direct correlation between the MRE and colossal magnetoresistance was observed. Samples with x = 0-0.3 prepared using the homogeneous coprecipitation and the solid state reaction methods were studied, covering the range of insulating to metallic behaviour. The M RE probed both the magnetically induced modification of the scattering of Drude-like electrons and the magnetic dependence of a stretching vibration mode. (C) 2004 Elsevier B.V. All rights reserved.