Power dependence of magnetization dynamics in magnetic parametron

Hiroki Shimizu; Tomosato Hioki; Eiji Saitoh

Presentation information

Oral presentation

10 Spintronics and Magnetics » 10.2 Fundamental and exploratory device technologies for spin

[16p-D419-1~18] 10.2 Fundamental and exploratory device technologies for spin

Thu. Mar 16, 2023 1:30 PM - 6:30 PM D419 (Building No. 11)

Kihiro Yamada(Tokyo Tech.), Weinan Zhou(NIMS), Takumi Yamazaki(Tohoku Univ.)

5:45 PM - 6:00 PM

▲ [16p-D419-16] Power dependence of magnetization dynamics in magnetic parametron

〇Hiroki Shimizu¹, Tomosato Hioki^2,1, Eiji Saitoh^1,2,3,4 (1.Dept. Appl. Phys. Univ. Tokyo, 2.AIMR Tohoku Univ., 3.Inst. AI and Beyond, Univ. Tokyo, 4.JAEA)

Keywords:magnetization dynamics, parametric excitation

Although a magnon parametron is known to oscillate stably near threshold, strongly excited magnetization fluctuation dynamics in the magnon parametron is unexplored. Therefore, we measured the power dependence of magnetization dynamics in a magnon parametron. Experimental results at low excitation power are consistent with single-mode numerical calculations. Experimental results at high excitation power differ from numerical calculations and suggest the existence of multiple modes.