The 68th JSAP Spring Meeting 2021

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10 Spintronics and Magnetics » 10.1 Emerging materials in spintronics and magnetics (including fabrication and characterization methodologies)

[16p-Z19-1~23] 10.1 Emerging materials in spintronics and magnetics (including fabrication and characterization methodologies)

Tue. Mar 16, 2021 1:00 PM - 7:30 PM Z19 (Z19)

Takashi Komine(Ibaraki Univ.), Hiroaki Sukegawa(NIMS), Tetsuya Hajiri(名大), Ryo Iguchi(物材機構)

3:00 PM - 3:15 PM

▼ [16p-Z19-8] Tetragonal strain and perpendicular magnetic anisotropy in Mn2−δCoGa1+δ thin films

〇Mitsuhiro Matsuki1,2, Takahide Kubota2,3, Yohei Kota4, Keita Ito2,3, Koki Takanashi2,3,5 (1.Grad. School Eng., Tohoku Univ., 2.IMR, Tohoku Univ., 3.CSRN, Tohoku Univ., 4.NIT Fukushima College, 5.CSIS, Tohoku Univ.)

Keywords:Heusler alloy

The layer thickness dependence of lattice strain, c/a and uniaxial magnetocrystalline anisotropy constant, Ku, of a Heusler alloy Mn2CoGa films were investigated, in this study. Two kinds of substrates, MgO (100) and SrTiO3 (100), were used to fabricate film samples showing different c/a ratios. A positive correlation between the values of c/a and Ku was confirmed. The sample series showing different c/a and Ku is interesting for characterizing spin dependent transport properties, such as anomalous Hall effect, anisotropic magnetoresistance effect, so on, in future study.