[P] P144~P151 Materials Physics

[P147] Magnetic properties of the quaternary Heusler alloy CoFeTiAl_1−xSn_x

○Iduru Shigeta¹, Rintaro Wada¹, Keiichiro Kuma¹, Touru Yamauchi², Rie Y. Umetsu³, Takeshi Kanomata⁴, Masahiko Hiroi¹ (1. Kagoshima Univ., 2. Univ. of Tokyo, 3. Tohoku Univ., 4. Tohoku Gakuin Univ.)

Keywords:

Heusler alloy,half metal,paramagnet

To elucidate the evolution of magnetism between Heusler alloys CoFeTiSn and CoFeTiAl, we investigated the quaternary Heusler alloys CoFeAl_1−xSn_x. CoFeTiSn exhibits magnetic properties consistent with half-metallicity, while increasing Al content systematically reduces the spontaneous magnetization and Curie temperature.