[12p-N405-1~11] 4.6 Terahertz Photonics

▲ [12p-N405-7] Azimuthal angle dependence of terahertz emission intensity for the epitaxial magnetic heterostructure

〇Makoto Nakajima¹, Tetsukawa Shoei^1,2, Liu Shuang¹, Matsunaga Taiyo¹, Mag-usara Valynn¹, Verdad Agulto¹, Makoto Kohda³, Thompson Ryan³, Gamou Hiromu³, Du Ye³, Karube Shutaro³, Nitta Junsaku³, Asakawa Makoto², Tani Masahiko⁴ (1.Osaka University, 2.Kansai University, 3.Tohoku University, 4.Fukui University)

Keywords:terahertz, spintronic emitter, spin current

Spintronic terahertz emitters are terahertz wave emitting elements that utilize spin currents. We have produced Pt/Co spintronic terahertz emitters by epitaxial growth of Pt and Co layers on MgO(110) substrate. The azimuthal angle dependence of Pt/Co spintronic terahertz emission shows characteristic dependences due to magnetic anisotropy. The terahertz emission is useful to evaluate the magnetic anisotropy in spintronic thin films.