4 papers
Evidence for electron localisation in a moiré-of-moiré superlattice
Hangyeol Park, Junhyeok Oh, Rasoul Ghadimi +7
The localisation of electrons in a lattice potential is an quantum-mechanical phenomenon and is often associated with remarkable physical properties of solids involving electron sp…
Local thermodynamic DOS measurement and twist-angle mapping in graphene-hBN superlattices
Namkyung Lee, Hangyeol Park, Seungwon Jung +3
Moiré patterns arising from twisted van der Waals stacks fundamentally reshape their electronic properties, enabling band-structure engineering that has driven rapidly growing int…
Interplay of valley, layer and band topology towards interacting quantum phases in moiré bilayer graphene
Yungi Jeong, Hangyeol Park, Taeho Kim +4
In Bernal-stacked bilayer graphene (BBG), the Landau levels give rise to an intimate connection between valley and layer degrees of freedom. Adding a moiré superlattice potential…
Characterization of a graphene-hBN superlattice field effect transistor
Won Beom Choi, Youngoh Son, Hangyeol Park +5
Graphene provides a unique platform for hosting high quality 2D electron systems. Encapsulating graphene with hexagonal boron nitride (hBN) to shield it from noisy environments off…