Magnetoresistive memory in phase separated La0.5Ca0.5MnO3

JOAQUIN SACANELL; F. PARISI; P. LEVY; L. GHIVELDER

PHYSICA B - CONDENSED MATTER

Elsevier

Año: 2004 vol. 354 p. 43 - 46

0921-4526

We have studied a non-volatile memory effect in the mixed valent compound La0.5Ca0.5MnO3 induced by magnetic field (H). In a previous work (Phys. Rev. B 65 (2002) 104403), it has been shown that the response of this system upon application of H strongly depends on the temperature range, related to three well-differentiated regimes of phase separation occurring below 220 K. In this work we compare memory capabilities of the compound, determined following two different experimental procedures for applying H; namely zero-field cooling and field cooling the sample.These results are analyzed and discussed within the scenario of phase separation.