4 papers
3D microwave imaging of a van der Waals heterostructure
Leonard W. Cao, Chen Wu, Lingyuan Lyu +9
Van der Waals (vdW) heterostructures offer a tunable platform for the realization of emergent phenomena in layered electron systems. While scanning probe microscopy techniques have…
Dynamic twisting and imaging of moiré crystals
Qixuan Zhang, Lingyuan Lyu, Sneh Pancholi +11
Moiré superlattices in stacked 2D crystals are powerful platforms for engineering correlated and topological quantum phases, with twisted graphene and transition metal dichalcogeni…
MilliKelvin microwave impedance microscopy in a dry dilution refrigerator
Leonard Weihao Cao, Chen Wu, Rajarshi Bhattacharyya +2
Microwave impedance microscopy (MIM) is a near-field imaging technique that has been used to visualize the local conductivity of materials with nanoscale resolution across the GHz…
Theory of the microwave impedance microscopy of Chern insulators
Taige Wang, Chen Wu, Masataka Mogi +5
Microwave impedance microscopy (MIM) has been utilized to directly visualize topological edge states in many quantum materials, from quantum Hall systems to topological insulators,…