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cond-mat.mes-hall2024
Easy-to-configure zero-dimensional valley-chiral modes in a graphene point junction
Konstantin Davydov, Xi Zhang, Wei Ren +6
The valley degree of freedom in 2D materials can be manipulated for low-dissipation quantum electronics called valleytronics. At the boundary between two regions of bilayer graphen…
cond-mat.mes-hall2024
Electron Collimation in Twisted Bilayer Graphene via Gate-defined Moiré Barriers
Wei Ren, Xi Zhang, Ziyan Zhu +6
Electron collimation via a graphene pn-junction allows electrostatic control of ballistic electron trajectories akin to that of an optical circuit. Similar manipulation of novel co…