Ren Wei, Zhu Ziyan, Zhang Xi, Luskin Mitchell, Wang Ke
School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, United States of America.
Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America.
J Phys Condens Matter. 2025 Aug 29;37(35). doi: 10.1088/1361-648X/adf6f9.
When a third layer of graphene is transferred on top of twisted bilayer graphene with a second twist, the atomic and electronic structure of the system can be significantly enriched. Generally, the two coexisting moiré superlattices give rise to a higher-order moiré-of-moiré (MoM) superlattice, with a plethora of new length scales and associated novel quantum phenomena. This article reviews the current theoretical understanding and experimental observations of twisted trilayer graphene MoM (or supermoiré) superlattices, and the theoretical predictions and ongoing experimental efforts for unraveling rich exotic quantum phenomena and underlying physics.
当在具有第二次扭转的扭曲双层石墨烯之上转移第三层石墨烯时，该系统的原子和电子结构会得到显著丰富。一般来说，两种共存的莫尔超晶格会产生一种高阶的莫尔 - 莫尔（MoM）超晶格，伴随着大量新的长度尺度和相关的新奇量子现象。本文综述了当前对扭曲三层石墨烯MoM（或超莫尔）超晶格的理论理解和实验观测，以及为揭示丰富的奇异量子现象和基础物理所做的理论预测和正在进行的实验工作。
