Xu Xiao, Okada Hironari, Chieda Yusuke, Aizawa Naoki, Takase Daiki, Nishihara Hironori, Sakon Takuo, Han Kwangsik, Ito Tatsuya, Adachi Yoshiya, Kihara Takumi, Kainuma Ryosuke, Kanomata Takeshi
Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan.
Faculty of Engineering, Tohoku Gakuin University, Tagajo 985-8537, Japan.
Materials (Basel). 2019 Jul 19;12(14):2308. doi: 10.3390/ma12142308.
The magnetization, electric resistivity, and magnetoresistance properties of Pd 2 Mn 1 . 4 Sn 0 . 6 Heusler alloys were investigated. The Curie temperature of the parent phase, martensitic transformation temperatures, and magnetic field dependence of the martensitic transformation temperatures were determined. The magnetoresistance was investigated from 10 to 290 K, revealing both intrinsic and extrinsic magnetoresistance properties for this alloy. A maximum of about - 3 . 5 % of intrinsic magnetoresistance under 90 kOe and of about - 30 % of extrinsic magnetoresistance under 180 kOe were obtained. Moreover, the thermal transformation arrest phenomenon was confirmed in the Pd 2 Mn 1 . 4 Sn 0 . 6 alloy, and an abnormal heating-induced martensitic transformation (HIMT) behavior was observed.
研究了Pd₂Mn₁.₄Sn₀.₆赫斯勒合金的磁化强度、电阻率和磁阻特性。确定了母相的居里温度、马氏体转变温度以及马氏体转变温度的磁场依赖性。在10至290 K范围内研究了磁阻，揭示了该合金的本征和非本征磁阻特性。在90 kOe下获得了约-3.5%的最大本征磁阻，在180 kOe下获得了约-30%的最大非本征磁阻。此外，在Pd₂Mn₁.₄Sn₀.₆合金中证实了热转变停滞现象，并观察到异常的加热诱导马氏体转变（HIMT）行为。
