Physics – Condensed Matter – Materials Science
Scientific paper
2006-05-12
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.
Granja L.
Hueso Luis E.
Levy Patrick
Mathur Neil D.
Prieto Jose Luis
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