Realization of multifunctional shape-memory ferromagnets in all-d-metal Heusler phases
| Autor: | Wei, Z. Y., Liu, E. K., Chen, J. H., Li, Y., Liu, G. D., Luo, H. Z., Xi, X. K., Zhang, H. W., Wang, W. H., Wu, G. H. |
|---|---|
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Appl. Phys. Lett. 107, 022406 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4927058 |
| Popis: | Heusler ferromagnetic shape-memory alloys (FSMAs) normally consist of transition-group d-metals and main-group p-elements. Here, we report the realization of FSMAs in Heusler phases that completely consist of d metals. By introducing the d-metal Ti into NiMn alloys, cubic B2-type Heusler phase is obtained and the martensitic transformation temperature is decreased efficiently. Strong ferromagnetism is established by further doping Co atoms into the B2-type antiferromagnetic Ni-Mn-Ti austenite. Based on the magnetic-field-induced martensitic transformations, collective multifunctional properties are observed in Ni(Co)-Mn-Ti alloys. The d metals not only facilitate the formation of B2-type Heusler phases, but also establish strong ferromagnetic coupling and offer the possibility to tune the martensitic transformation. Comment: 15 pages, 4 figs. Accepted by APL |
| Databáze: | arXiv |
| Externí odkaz: |
|