Chirality-controlled heterostructures
When two 2D materials are stacked with a specific twist angle, they form a heterostructure characterized by a moiré superlattice. This superlattice acts as a playground for emergent quantum phenomena, ranging from unconventional superconductivity to the formation of excitonic lattices.
Within the Cluster of Excellence on Chiral Electronics, our goal is to develop heterostructures where the twist angle can be controlled in-situ during optical probing. To achieve this, we are developing an "optical twisting microscope" -- a setup capable of precise mechanical manipulation of 2D materials at cryogenic temperatures.
Our research focuses on:
- Generating chiral polaritons on demand in 2D polaritonic materials.
- Investigating phase transitions within angle-controlled moiré lattices.
- Achieving excitonic confinement via on-demand localized field and strain manipulation.
- Studying the dynamics of twist-angle controlled moiré domains.
