Easy moment direction and antiferromagnetic domain wall motion in Mn2Au
| Autor: | Claire V. Colin, Richard Haettel, Didier Dufeu, D. Givord, V. M. T. S. Barthem |
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| Přispěvatelé: | Instituto de Física da Universidade Federal do Rio de Janeiro (IF / UFRJ), Universidade Federal do Rio de Janeiro (UFRJ), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Thermique Elaboration Matériaux Applications (ThEMA), Ingénierie Expérimentale (ExpE), Micro et NanoMagnétisme (MNM ) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Condensed matter physics Spintronics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Rotation 01 natural sciences Electronic Optical and Magnetic Materials Magnetic field Magnetization Domain wall (magnetism) 0103 physical sciences Moment (physics) [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Excitation ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Journal of Magnetism and Magnetic Materials Journal of Magnetism and Magnetic Materials, Elsevier, 2016, 406 (24), pp.289-292. ⟨10.1016/j.jmmm.2015.07.101⟩ |
| ISSN: | 0304-8853 |
| Popis: | The interest of giving active functions to antiferromagnetic (AFM) materials in spintronics devices has been realized recently. Mn2Au is a high-Neel temperature antiferromagnet with large Mn moment, lying in plane of the tetragonal structure. To determine the direction of the moments in Mn2Au, an original approach is demonstrated, which should be generic to planar AFM materials. It involves the rotation of the granular sample around an axis perpendicular to the applied magnetic field. The family of easy moment directions is 〈110〉. For grains prevented from rotating, the dominant magnetization process is AFM domain wall motion. Textured Mn2Au nanoelements could be introduced in spintronics devices, in which the Mn moments would be switched under modest external excitation. |
| Databáze: | OpenAIRE |
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