[18a-P03-1~16] 10 Spintronics and Magnetics(Poster)

▲ [18a-P03-1] Characteristic Investigation of Spin Gapless Semiconductor CoFeMnSi Thin Films for Spin Injection

〇(D)Juncheng Wang¹, Mikihiko Oogane¹, Masakiyo Tsunoda¹, Yasuo Ando¹ (1.Tohoku Univ.)

Keywords:equiatomic quaternary Heusler alloys

We report the structure, magnetic and transport properties of CoFeMnSi equiatomic quaternary Heusler alloy thin films. The epitaxial growth of the CFMS thin films with L2₁ or higher Y-type ordered structure on MgO (001) substrate was achieved using the in situ postannealing at temperature of 500℃. A saturation magnetization value of about 830 emu/cc was obtained at room temperature. The electrical conductivity measured at 300K is about 6150 S/cm.