Realization of multifunctional shape-memory ferromagnets in all-d-metal Heusler phases
Realization of multifunctional shape-memory ferromagnets in all-d-metal Heusler phases
复制标题
全d金属Heusler相多功能形状记忆铁磁体的实现
DOI：
10.1063/1.4927058
复制
发表时间：
2015-07-13
影响因子：
4
通讯作者：
Wu, G. H.
中科院分区：
文献类型：
--
作者：
Wei, Z. Y.;Liu, E. K.;Wu, G. H.
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.
