Decoupled magnetic and electrical switching in manganite trilayer
msra(2005)
Abstract
We report magnetic and electrical transport studies of an epitaxially grown
trilayer thin film structure comprising La0.59Ca0.41MnO3 sandwiched between
La0.67Ca0.33MnO3 electrodes. Since La0.59Ca0.41MnO3 lies at the edge of the
thin film ferromagnetic metallic phase field, phase separation effects are
expected. These effects can explain the observed magnetic isotropy of the
middle layer. By contrast, the electrode material is magnetically uniaxial.
Easy axis magnetic field sweeps of the trilayer produce two sharp magnetic
transitions, but only one sharp transition in current-in-plane resistance
measurements.
MoreTranslated text
Key words
thin film,magnetic field,materials science,phase separation
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