Magnetization of epitaxial MnGe alloys on Ge(111) substrates
| Autor: | Franco Lucari, Roberto Vittorio Murri, Nicola Pinto, Roberto Gunnella, Franco D'Orazio, Maurizio Passacantando, L. Morresi, Luca Ottaviano |
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| Rok vydání: | 2005 |
| Předmět: |
Kerr effect
Magnetic structure Magnetic domain Condensed matter physics Chemistry Surfaces and Interfaces Magnetic semiconductor Condensed Matter Physics Surfaces Coatings and Films Condensed Matter::Materials Science Magnetization Phase (matter) Materials Chemistry Curie temperature Magnetic force microscope |
| Zdroj: | Surface Science. 577:22-30 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/j.susc.2004.12.021 |
| Popis: | The structural and magnetic properties of an Mn rich solid phase epitaxy MnxGe1� x alloy grown on a clean 2 · 8Ge(1 1 1) surface, with a Curie temperature of about 300 K are investigated. Magneto-optical Kerr effect infers the existence of in-plane easy magnetization direction. We describe the epitaxial registry condition, the room temperature—zero field magnetic structure observed by magnetic force microscopy and the magneto-optical properties. The observations are consistent with the formation of epitaxial Mn5Ge3 alloy, with a modulated magnetic structure characterized by asymmetric 180� Bloch walls consisting of a vortex-like configuration of the local magnetization. � 2005 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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