Electrical transport and glassy response in strained thin La0.7Ca0.3MnO3 films

Abstract

Magnetotransport properties of La0.7Ca0.3MnO3 thin films deposited on (100) LaAlO3 substrate were investigated. The balance between the charge ordered insulating phase and ferromagnetic metallic phase may account for a number of glassy features such as: significant hysteresis, memory effects and long-time resistivity relaxation. It was found that the resistance of La0.7Ca0.3MnO3 thin film decreases significantly upon applying electric current, in a wide temperature range 10 - 220 K. The magnetotransport properties of the strained thin films are discussed in the context of cross-coupling of charge, spin and strain.

arXiv comment25 pages, 6 figures, to be published PRB

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Cited by in corpus (2)

• Spatially extended nature of resistive switching in perovskite oxide thin films
• Evidences of a consolute critical point in the Phase Separation regime of La(5/8-y)Pr(y)Ca(3/8)MnO(3) (y = 0.4) single crystals