Presentation Information
[23a-P03-3]Saturation Property for Magnetic Field of Terahertz Waves Emitted from Spintronic Emitters
Miezel Talara1, 〇HIDEAKI KITAHARA1, Katsuyuki Ishii1, Takashi Furuya1, Mary Escano1, Masahiko Tani1, Dmitry Bulgarevich2, Dongfeng He2, Makoto Watanabe2 (1.Univ. of Fukui, 2.NIMS)
Keywords:
spintronic emitter,magnetic bias modulation,Terahertz spectroscopy
The intensity and polarity of terahertz (THz) waves emitted from spintronic devices depend on the strength and direction of the applied magnetic field. In our previous presentation, we reported on the improvement of THz wave detection efficiency using alternating current magnetic field bias. At this time, it was observed that the amplitude dependence of the radiated THz wave on the strength of magnetic field had already begun to saturate at 2 mT. Therefore, in this study, we report the results of quantitative evaluation of the bias-strength dependence of magnetic field for spintronic devices.