Electric and magnetic fields effects on the transport properties of La0.5 Ca0.5 MnO3 thin films

M.VILLAFUERTE, S.DUHALDE, D.RUBI,G.BRIDOUX, S.HELUANI, M.SIRENA, L.STEREN

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Elsevier

Lugar: Amsterdam; Año: 2004 vol. 272 p. 402 - 404

0304-8853

The insulator to metal transition in manganites can be drastically in .uenced by internal factors,such as chemical composition,or under a variety of external perturbations,like magnetic or electric .elds.In this work,the electrical resistance of La0.5 Ca0.5 MnO3 thin .lms was investigated using different constant voltages.At low temperature the conductivity of the .lms is non-Ohmic and moderate electric .elds results in resistivity switching to metastable states. Comparisons between the in .uence of magnetic and electric .elds on transport measurements are reported.a0.5 Ca0.5 MnO3 thin .lms was investigated using different constant voltages.At low temperature the conductivity of the .lms is non-Ohmic and moderate electric .elds results in resistivity switching to metastable states. Comparisons between the in .uence of magnetic and electric .elds on transport measurements are reported.