Tuning the structural, magnetic, and transport properties of Mn3Ga alloys
| Autor: | Linxuan Song, Weike Li, Senhao Lv, Xuekui Xi, Dongliang Zhao, Jun He, Wenhong Wang |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Applied Physics. 131:173903 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/5.0087415 |
| Popis: | Mn3Ga alloys with different crystal modifications, including a disordered L12-type cubic structure, a D022-tetragonal structure, and a D019-hexagonal structure showing two isomorphic heteromagnetic phases, ε-phase and η-phase, were investigated systematically. We found that the disordered cubic phase and the hexagonal ε-phase can be synthesized with Mn compositions ranging from 70 to 75 at. % by rapid melt-spinning. Moreover, the disordered cubic phase could transform to the tetragonal phase after being subjected to low-temperature postannealing. Most importantly, we found that proper postannealing conditions can enable these different crystal modification phases to transform to the hexagonal η-phase. As a result, the two isomorphic heteromagnetic hexagonal phases are clearly distinguished, and their interesting magnetic and transport properties are discussed. |
| Databáze: | OpenAIRE |
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