Intrinsic inhomogeneities and effects of resistive switching in doped manganites
N. A. Tulina, L. S. Uspenskaya, V. V. Sirotkin, Y. M. Mukovskii, D. A Shulyatev
Abstract
The effect of resistive switching in doped manganites being in the ferromagnetic state has been studied using resistive and magneto-optic methods. The visualization of magnetic structure of La0.75Sr0.25MnO3-x single crystals, and its transformation under electric current proposed local superheating of the material above the Curie temperature, which was supported by numerical calculation. The obtained results suggest a significant role of micrometer-scale inhomogeneity of manganites in phase separation, magnetic and transport properties of the material.
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