Si‐Young Choi

Modular van der Waals MOSFETs through layer-by-layer chalcogen substitutions

In two-dimensional transition-metal dichalcogenides (TMDCs), the local electrostatic field of the chalcogen p -orbitals dictates the crystal field splitting of the transition metal d -orbitals, stabilizing diverse electronic states from semiconducting and semimetallic to exotic t...

Correlated one-dimensional electron conduction in ferroelastic domain walls through nematic-like charge stripes

One-dimensional electronic transport reveals many-body quantum phenomena and serves as a foundation for quantum devices, sensors, and reconfigurable electronics. Here, we demonstrate that surface-exposed ferroelastic twin walls in epitaxial WO 3 films function as intrinsic one-di...