Step geometry–guided growth of rhombohedral graphene
Abstract
Rhombohedral (ABC)–stacked graphene has emerged as a platform for exploring correlated and topological physics. However, its large-scale, pure-phase synthesis has been hindered by intrinsic thermodynamic metastability and kinetic instability. In this work, we introduce a step geometry–guided epitaxial strategy to deterministically control interlayer slip, enabling the synthesis of pure-phase rhombohedral graphene. Using this approach, we obtained pure (phase purity > 99%) rhombohedral graphene with an area reaching 160 micrometers by 80 micrometers and thickness ranging from ~15 layers to ~120 nanometers. The resulting samples establish the first comprehensive reference dataset of Raman fingerprints and intrinsic band structures from few-layer films to ~200-layer bulk. Electronic transport measurements reveal a layer-antiferromagnetic state and the quantum anomalous Hall effect, enabling scalable exploration of next-generation quantum science and technology applications.
Article Details
Journal Info
Science
American Association for the Advancement of Science
Authors (19)
Mengze Zhao
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Zhibin Zhang
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Xin Sui
Quanlin Guo
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Cheng Qian
Suzhou Laboratory, Suzhou, China.
Zaizhe Zhang
Hanbo Xiao
School of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
Jingyi Zhu
Zuo Feng
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Yilong You
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Tianze Dong
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Xin-Zheng Li
State Key Laboratory for Mesoscopic Physics, Frontiers Science Centre for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.
Sheng Wang
Li Wang
The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital Zhengzhou China
Enge Wang
Interdisciplinary Institute of Light-Element Quantum Materials and Research Centre for Light-Element Advanced Materials, Peking University, Beijing, China.
Feng Ding
Zhongkai Liu
Xiaobo Lu
Kaihui Liu