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cond-mat.mes-hall2026
Layer-polarized Transport via Gate-defined 1D and 0D PN Junctions in Double Bilayer Graphene
Wei Ren, Xi Zhang, Shiyu Guo +6
We fabricate twisted double bilayer graphene devices with zero twist angle and a set of local top and bottom gates aligned perpendicularly to each other. A 1D PN junction can be el…
cond-mat.mes-hall2026
Ferroelectric Quantum Point Contact in Twisted Transition Metal Dichalcogenides
Wei Ren, Shiyu Guo, Daochen Long +8
In twisted transition metal dichalcogenides (tTMDs), atomic reconstruction gives rise to moiré domains with alternating ferroelectric polarization, whose domain size and overall el…