Tunable Moiré Superlattice of Artificially Twisted Monolayers
Abstract
Twisting between two stacked monolayers modulates periodic potentials and forms the Moiré electronic superlattices, which offers an additional degree of freedom to alter material property. Considerable unique observations, including unconventional superconductivity, coupled spin‐valley states, and quantized interlayer excitons are correlated to the electronic superlattices but further study requires reliable routes to study the Moiré in real space. Scanning tunneling microscopy (STM) is ideal to precisely probe the Moiré superlattice and correlate coupled parameters among local electronic structures, strains, defects, and band alignment at atomic scale. Here, a clean route is developed to construct twisted lattices using synthesized monolayers for fundamental studies. Diverse Moiré superlattices are predicted and successfully observed with STM at room temperature. Electrical tuning of the Moiré superlattice is achieved with stacked TMD on graphite.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 24, 2019
- Source ID
- 10.1002/adma.201901077
Entities
People
- Chia‐seng Chang
- Chun‐An Chen
- Erh‐chen Lin
- Jyun‐jyun Chen
- Lih‐juann Chen
- Po‐yen Chen
- Shangjr Gwo
- Syu‐you Guan
- Xin‐quan Zhang
- Yi-Hsien Lee
- Ying‐yu Lai
- Yu‐wen Tseng
- Zhe‐hong Yang
Organizations
- Academia Sinica
- Ministry of Education of Taiwan
- National Science and Technology Council
- National Tsing Hua University
- Office of Naval Research Global