[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)

キーワード：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.