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arXiv · 1801.08918

Thermal cycling effects on static and dynamic properties of a phase separated manganite

Joaquín Sacanell·Bernardo Sievers·Mariano Quintero·Leticia Granja·Luis Ghivelder·Francisco Parisi
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Abstract

In this work we address the interplay between two phenomena which are signatures of the out-of-equilibrium state in phase separated manganites: irreversibility against thermal cycling and aging/rejuvenation process. The sample investigated is La0.5Ca0.5MnO3, a prototypical manganite exhibiting phase separation. Two regimes for isothermal relaxation were observed according to the temperature range: for T > 100 K, aging/rejuvenation effects are observed, while for T < 100 K an irreversible aging was found. Our results show that thermal cycles act as a tool to unveil the dynamical behavior of the phase separated state in manganites, revealing the close interplay between static and dynamic properties of phase separated manganites.

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Joaquín Sacanell, Bernardo Sievers, Mariano Quintero, Leticia Granja, Luis Ghivelder, Francisco Parisi. 2018-01-26. Thermal cycling effects on static and dynamic properties of a phase separated manganite. https://doi.org/10.1016/j.jmmm.2018.02.035

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