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"Correlation Between Magnetic and Transport Properties of Phase Separated La0.5Ca0.5MnO3"
J. Sacanell, P. Levy, L. Ghivelder, G. Polla and F. Parisi
Proc. of the "5th Latin American Workshop on Magnetism, Magnetic Materials and their Applications" (LAW3M '01), San Carlos de Bariloche, Río Negro, Argentina, September 3-7, 2001. Ed. C.A. Ramos, B. Alascio, M.T. Causa, M. Tovar.
Physica B Condens. Matter. 320(1-4) (2002) 90-93
The effect of low-magnetic fields on the magnetic and electrical transport properties of polycrystalline samples of the phase-separated compound La0.5Ca0.5MnO3 is studied. The results are interpreted in the framework of the field-induced ferromagnetic fraction enlargement mechanism. A fraction expansion coefficient af; which relates the ferromagnetic fraction f with the applied field H; was obtained. A phenomenological model to understand the enlargement mechanism is worked out.
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