Spintronic Terahertz Emission and Magnetic Anisotropy of Epitaxial Platinum Heterostructures on MgO(110) Substrate

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Pub Date : 2021-08-29 DOI:10.1109/IRMMW-THz50926.2021.9566960
Shoei Tetsukawa, Shuang Liu, V. Mag-usara, V. C. Agulto, M. Kohda, Ryan Thompson, H. Gamou, Ye Du, S. Karube, J. Nitta, M. Tani, M. Asakawa, M. Nakajima
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Abstract

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.
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MgO(110)衬底上外延铂异质结构的自旋电子太赫兹发射和磁各向异性
自旋电子太赫兹发射器是利用自旋电流的太赫兹波发射元件。通过在MgO(110)衬底上外延生长Pt和Co层，制备了Pt/Co自旋电子太赫兹发射器。Pt/Co自旋电子太赫兹发射的方位角依赖表现为磁各向异性的特征依赖。太赫兹辐射是评价自旋电子薄膜磁各向异性的有效方法。
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2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
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