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Epr and magnetic properties on lacamno manganites

Olarte, J. A. and Mariño, A. (2008) Epr and magnetic properties on lacamno manganites. MOMENTO - Revista de Física; núm. 36 (2008); 18-25 0121-4470 .

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Electron paramagnetic resonance (EPR) and AC Susceptibility measurements were carried out as a function of temperature on La0,7Ca0,3MnO3 polycrystalline samples. The samples displayed a transition from paramagnetic-insulator to ferromagnetic-metal at Tc around 261K. Tc was determined from the inverse of the real part of a.c. susceptibility (1/X’) vs temperature, which follows a simple Curie-Weiss behavior. The inverse of the EPR intensity also follows a Curie-Weiss type behavior down toTEPR = 253 K.. The structure of the samples as determined by X-Ray diffraction (XRD) corresponds to a single perovskite phase with orthorhombic unit cell., Electron paramagnetic resonance (EPR) and AC Susceptibility measurements were carried out as a function of temperature on La0,7Ca0,3MnO3 polycrystalline samples. The samples displayed a transition from paramagnetic-insulator to ferromagnetic-metal at Tc around 261K. Tc was determined from the inverse of the real part of a.c. susceptibility (1/X’) vs temperature, which follows a simple Curie-Weiss behavior. The inverse of the EPR intensity also follows a Curie-Weiss type behavior down toTEPR = 253 K.. The structure of the samples as determined by X-Ray diffraction (XRD) corresponds to a single perovskite phase with orthorhombic unit cell.

Tipo de documento:Artículo - Article
Palabras clave:LaCaMnO manganites, EPR, a.c. susceptibility., LaCaMnO manganites, EPR, a.c. susceptibility.
Unidad administrativa:Revistas electrónicas UN > MOMENTO - Revista de Física
Código ID:38069
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :03 Julio 2014 18:47
Ultima modificación:06 Junio 2018 10:34
Ultima modificación:06 Junio 2018 10:34
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