[Tu-A2-B] Optical properties in 2D materials

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[Tu-A2-B-01] Acoustoelectric Probing of Fractal Energy Spectra in Graphene/hBN Moiré Superlattices

〇Wenqing Song¹, Yicheng Mou¹, Qing Lan¹, Guorui Zhao¹, Zejing Guo¹, Jiaqi Liu¹, Tuoyu Zhao¹, Cheng Zhang¹, Wu Shi¹ (1. Fudan Univ. (China))

High-order Hofstadter fractal states in graphene/hBN moiré superlattices are resolved by acoustoelectric (AE) transport measurements. This derivative-sensitive technique clearly maps the Hofstadter butterfly. Our results establish AE transport as a powerful probe for emergent quantum phenomena in 2D systems.