Large domain wall resistance in self-organised manganite film

Details Large domain wall resistance in self-organised manganite film Large domain wall resistance in self-organised manganite film

2006-05-12

arxiv.org/abs/cond-mat/0605341v2

Physics

Condensed Matter

Materials Science

Devices are set in the context of metallic tunnel junctions, and magnetic data is included

Scientific paper

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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