Dynamic vdW Heterostructures
- The Quantum Twisting Microscope (QTM) represents a paradigm shift in how we study vdW materials by introducing a vdW device onto a tip. Rather than fabricating and measuring many static devices with different twist angles, we can now dynamically tune the twist angle, lateral position, and pressure, along with gating and interlayer bias. This approach lets us watch how electronic and magnetic states evolve in real time, rather than device by device.
- This platform provides us with a tunable quantum laboratory: we can investigate 2D quantum matter in both real space (using the Atomic SET) and momentum space (using the QTM), capturing how exotic phases emerge and transform under continuously adjustable degrees of freedom.

Atomic SET
An atomic defect in the interface functions as a scannable quantum dot and single electron transistor (SET). It can image local charge, electrostatic potential, and related quantities with nanometer resolution.

Quantum Twisting Microscope
Coherent electron tunneling between two vdW layers conserves momentum. By tuning momentum with in-situ rotation, the QTM can reveal band structures and low-energy excitations in the 2D limit.

Together, these complementary modes form a powerful dual lens for vdW microscopy. Used alongside quantum transport and tunneling measurements, they will clarify the microscopic origins of correlated, magnetic, and topological phases in 2D quantum matter.