Tunable magnetostructural phase transition and magnetocaloric effect in Mn 1−x Ni 1−x Co 2x Si 1−x Ge x system
| Autor: | D. H. Wang, En-Jia Ye, Z.D. Han, H.F. Shi, J.Q. Zhao, C. L. Zhang, Y.G. Nie |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Phase transition Materials science Condensed matter physics Mechanical Engineering Metals and Alloys Working temperature 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Condensed Matter::Materials Science Paramagnetism Magnetization Ferromagnetism Mechanics of Materials 0103 physical sciences Materials Chemistry Magnetic refrigeration Structural transition 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 698:7-12 |
| ISSN: | 0925-8388 |
| Popis: | Magnetostructural transition and the associated magnetocaloric effect were investigated for Mn1−xNi1−xCo2xSi1−xGex system. Co and Ge co-substitution drastically reduces the structural transition temperature from 1200 K to below room temperature. The magnetostructural transition occurring between a ferromagnetic and a paramagnetic state with a sharp jump in magnetization was realized, which is tunable in a broad Curie-temperature window spanning room temperature by altering the composition. Relatively large magnetic entropy changes and broad working temperature ranges were observed. These results suggest that the Mn1−xNi1−xCo2xSi1−xGex system can be an attractive platform for the tunable magnetostructural transition and the magnetocaloric effect. |
| Databáze: | OpenAIRE |
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