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Large domain wall resistance in self-organised manganite film

L. Granja·L. E. Hueso·D. Sanchez·J. L. Prieto·P. Levy·N. D. Mathur
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Abstract

The electrical resistance of magnetic domain walls in ferromagnetic metallic manganites can be enhanced to 10-12 Ohm.m2 by patterning nanoconstrictions [J. Appl. Phys. 89, 6955 (2001)]. We show equally large enhancements in a phase separated La0.60Ca0.40MnO3 manganite film without recourse to nanopatterning. The domain walls were measured in the current-perpendicular-to-the-plane (CPP) geometry between ferromagnetic metallic La0.70Ca0.30MnO3 electrodes patterned like magnetic tunnel junctions.

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L. Granja, L. E. Hueso, D. Sanchez, J. L. Prieto, P. Levy, N. D. Mathur. 2006-11-15. Large domain wall resistance in self-organised manganite film. https://arxiv.org/abs/cond-mat/0605341

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