[23p-21B-1~13] 22.1 Joint Session M "Phonon Engineering"

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[23p-21B-3] Visualization of topological edge modes in rotating mechanical graphene

〇Konosuke Yamaguchi¹, Gun Yoon¹, Osamu Matsuda¹, Tomoda Motonobu¹ (1.Hokkaido Univ.)

Keywords:

topological insulator,phononic crystal,edge modes

The topological phase, which originated from the discovery of the quantum Hall effect, can also be realized in phonon systems and is expected to lead to more efficient waveguides. In a previous study, it was shown numerically that topological edge modes can be realized by generating Coriolis forces in a spring-mass system called mechanical graphene, but actual experiments had not been conducted. In this study, mechanical graphene is actually fabricated and used to realize topological edge modes.