[18a-P03-1~16] 10 Spintronics and Magnetics(Poster)

[18a-P03-6] Control of THz antiferromagnetic resonance in composition-graded Ni_1-xMg_xO

〇Tomoki Ueno¹, Yuta Ohno², Kensuke Hayashi³, Keisuke Yamada², Mutsuhiro Shima², Yutaka Ohya², Teruo Ono¹, Takahiro Moriyama¹ (1.ICR, Kyoto Univ., 2.Gifu Univ., 3.NIMS)

Keywords:antiferromagnet

THz waves refer to electromagnetic waves in the frequency range of 0.3 to 10 THz, and are expected to be applied in various fields. Antiferromagnet materials have their magnetic resonance frequency in the THz band and are promising materials for the post-5G technology. In previous study, we have succeeded in controlling the antiferromagnetic resonance property by cation doping. In this research, in order to seek more controllability on the resonance properties, we investigate the antiferromagnetic resonance of composition-graded Ni_1−xMg_xO.