Crystal structure and exchange bias of Ni-Mn-based films
| Autor: | V. O. Vas’kovskiy, V. N. Lepalovskij, K. G. Balymov, N. A. Kulesh, M. E. Moskalev, Andrey V. Svalov, Aitor Larrañaga |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Condensed matter physics Annealing (metallurgy) Mechanical Engineering Metals and Alloys 02 engineering and technology Crystal structure Coercivity 010402 general chemistry 021001 nanoscience & nanotechnology Epitaxy 01 natural sciences 0104 chemical sciences Condensed Matter::Materials Science Exchange bias Mechanics of Materials Materials Chemistry Antiferromagnetism 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 777:264-270 |
| ISSN: | 0925-8388 |
| Popis: | Crystal structure and hysteresis properties of Ni-Mn/FeNi-based films are studied with respect to the composition of the Ni-Mn layer, annealing conditions, temperature, and the presence of an auxiliary layer. The exchange bias is confirmed to originate from the pinning effect of the antiferromagnetic γ-NiMn (A1 fcc) or θ-NiMn (L10 fct) phases formed in the Ni-Mn layer through the epitaxial growth on the seed layer or due to the annealing, respectively. The composition range of Ni-Mn and annealing temperatures providing the formation of the antiferromagnetic phases are determined, as well as their influence on temperature dependences of the exchange bias field and coercivity of the FeNi layer. |
| Databáze: | OpenAIRE |
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