Role of anti-phase boundaries in the formation of magnetic domains in magnetite thin films
| Autor: | Vlado K. Lazarov, Alexander Gerber, Aleksandar Skeparovski, Zlatko Nedelkoski, Richard F. L. Evans, Roberto Moreno, Sarah Jenkins |
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| Rok vydání: | 2021 |
| Předmět: |
Condensed Matter - Materials Science
Work (thermodynamics) Materials science Nanostructure Magnetic domain Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences chemistry.chemical_compound chemistry Chemical physics Phase (matter) 0103 physical sciences Spin model General Materials Science Thin film 010306 general physics 0210 nano-technology Magnetite |
| Zdroj: | Journal of Physics: Condensed Matter. 33:175802 |
| ISSN: | 1361-648X 0953-8984 |
| DOI: | 10.1088/1361-648x/abe26c |
| Popis: | Anti-phase boundaries (APBs) are structural defects which have been shown to be responsible for the anomalous magnetic behavior observed in different nanostructures. Understanding their properties is crucial in order to use them to tune the properties of magnetic materials by growing APBs in a controlled way since their density strongly depends on the synthesis method. In this work we investigate their influence on magnetite (Fe3O4) thin films by considering an atomistic spin model, focussing our study on the role that the exchange interactions play across the APB interface. We conclude that the main atypical features reported experimentally in this material are well described by the model we propose here, confirming the new exchange interactions created in the APB as the responsible for this deviation from bulk properties. |
| Databáze: | OpenAIRE |
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