日本金属学会 2020年春期(第166回)講演大会

Presentation information

General Session

9.Electric/Electronic/Optical Materials » Magnetic Materials

[G] Magnetically Functional Materials

Thu. Mar 19, 2020 9:20 AM - 11:30 AM Rm. L (W641,4th Flr., West Lecture Bldg.2)

Chair:Yoshifuru Mitsui(Kagoshima University), Asaya Fujita

9:20 AM - 9:35 AM

[290] Magnetocaloric effect measurements for metamagnetic shape memory alloys Ni50-xCoxMn31.5Ga18.5 (x = 9 and 9.7)

*Kihara Takumi1, Xu Xiao2, Miyake Atsushi3, Roy Tufan4, Mitamura Hiroyuki3, Tokunaga Masashi3, Adachi Yoshiya5, Kanomata Takeshi6 (1. IMR, Tohoku Univ., 2. Tohoku Univ., 3. ISSP, The Univ. of Tokyo, 4. RIEC, Tohoku Univ., 5. Yamagata Univ., 6. Tohoku Gakuin Univ.)

Keywords:磁気熱量効果、磁気冷凍、ホイスラー合金

メタ磁性形状記憶合金Ni50-xCoxMn31.5Ga18.5 (x = 9 and 9.7)の磁気熱量効果を断熱温度変化として直接測定した。磁気熱量効果の組成依存性について磁歪や比熱、状態密度計算の結果と合わせて電子論的に議論する。

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