Metamagnetic shape memory effect in a Heusler-type Ni43Co7Mn39Sn11 polycrystalline alloy
Metamagnetic shape memory effect in a Heusler-type Ni43Co7Mn39Sn11 polycrystalline alloy
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DOI：
10.1063/1.2203211
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发表时间：
2006-05-08
影响因子：
4
通讯作者：
Kitakami, O.
中科院分区：
文献类型：
--
作者：
Kainuma, R.;Imano, Y.;Kitakami, O.
采用差示扫描量热法、样品萃取法和三端电容法研究了Ni43Co7Mn39Sn11 Heusler多晶合金的形状记忆和磁性能。发现了一种独特的马氏体相变，从铁磁母相向反铁磁类马氏体相转变，并证实了在高磁场下磁场诱导的“反向”转变。此外，还观察到一个约1.0%的大磁场诱导形状恢复应变伴随着反向马氏体转变，并且在多晶样品中证实了最初在Ni45Co5Mn36.7In13.3 Heusler单晶中报道的超磁形状记忆效应。(c) 2006年美国物理研究所。
Shape memory and magnetic properties of a Ni43Co7Mn39Sn11 Heusler polycrystalline alloy were investigated by differential scanning calorimetry, the sample extraction method, and the three-terminal capacitance method. A unique martensitic transformation from the ferromagnetic parent phase to the antiferromagneticlike martensite phase was detected and magnetic-field- induced "reverse" transition was confirmed in a high magnetic field. In addition, a large magnetic-field-induced shape recovery strain of about 1.0% was observed to accompany reverse martensitic transformation, and the metamagnetic shape memory effect, which was firstly reported in a Ni45Co5Mn36.7In13.3 Heusler single crystal, was confirmed in a polycrystalline specimen.(c) 2006 American Institute of Physics.