Martensitic transition near room temperature and the temperature- and magnetic-field-induced multifunctional properties of Ni 49 CuMn 34 In 16 alloy
Martensitic transition near room temperature and the temperature- and magnetic-field-induced multifunctional properties of Ni 49 CuMn 34 In 16 alloy
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DOI：
10.1103/physrevb.82.172411
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发表时间：
2010-11
影响因子：
3.7
通讯作者：
V. Sharma;M. Chattopadhyay;A. Khandelwal;Subhadeep Roy
中科院分区：
文献类型：
--
作者：
V. Sharma;M. Chattopadhyay;A. Khandelwal;Subhadeep Roy
合金的铁磁奥氏体态发生近室温马氏体转变，镍位Cu取代率为2%。在马氏体态施加磁场使合金发生反马氏体转变。该合金的直流磁化、磁电阻和应变测量表明，马氏体相变存在较大的磁热效应、较大的磁电阻和磁场温度感应应变。因此，这种NiMnIn合金系统是一种新兴的磁性材料，其物理性质可以通过适当的化学取代来调整，从而在室温或室温周围实现磁场和温度诱导的多功能特性
A near room-temperature martensitic transition is observed in the ferromagnetic austenite state ofalloy with 2% Cu substitution at the Ni site. Application of magnetic field in the martensite state induces a reverse martensitic transition in this alloy. dc magnetization, magnetoresistance and strain measurements in this alloy reveal that associated with this martensitic transition there exist a large magnetocaloric effect, a large magnetoresitance and a magnetic-field temperature-induced strain. This NiMnIn alloy system thus is an example of an emerging class of magnetic materials whose physical properties can be tuned by suitable chemical substitutions, to achieve magnetic-field and temperature-induced multifunctional properties at and around room temperature