Strain induced magnetic domain evolution and spin re-orientation transition in epitaxial manganite films
| Autor: | P. K. Rout, R. C. Budhani, Gyanendra Singh, Rajni Porwal |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Magnetic domain Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Film plane FOS: Physical sciences Manganite Epitaxy Magnetic field Condensed Matter::Materials Science Condensed Matter::Superconductivity Domain (ring theory) Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Magnetic force microscope Spin (physics) |
| DOI: | 10.48550/arxiv.1208.3387 |
| Popis: | The evolution of magnetic domain structure in epitaxial La$_{0.625}$Ca$_{0.375}$MnO$_3$ films on (001) NdGaO$_3$ is monitored as a function of temperature and magnetic field using Magnetic Force Microscopy. We see two distinct regions of magnetic orientational order; one in-plane displaying contrast-less image and the other tilted away from the film plane forming a distinct stripe pattern. A strong domain splitting is observed at the boundary of two regions, which is resilient to reorientation with temperature and magnetic field. We propose a model magnetic free energy functional to explain the mechanism of domain splitting seen in manganite films. |
| Databáze: | OpenAIRE |
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