[7p-PB7-1~56] 10 Spintronics and Magnetics（Poster）

[7p-PB7-25] Characteristic of spin waves in Fibonacci magnonic crystals

〇Kazuyuki Nakayama¹, Satoshi Tomita², Kenji Kasahara¹, Tomomi Suwa², Nobuyoshi Hosoito², Hisao Yanagi², Takashi Manago¹ (1.Fukuoka Univ., 2.NAIST)

Keywords:metamaterial, spin waves, magnonic crystals

Spin-wave spin current is expected to be applied to low power super energy saving information processing devices, because it can suppress heat generation without flow of electrons. We study the manifestation of topological edge states in magnonic crystals with quasi-periodic structure. The topological edge states have strong propagation characteristics against disturbance. The permissible range of the quality of the ferromagnetic material and the fabrication accuracy of the artifictial structure widens, and is expected to realize robust and cost effective spin-wave devices.