Steven J. Tran
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View article: Deterministic fabrication of graphene hexagonal boron nitride moiré superlattices
Deterministic fabrication of graphene hexagonal boron nitride moiré superlattices Open
The electronic properties of moiré heterostructures depend sensitively on the relative orientation between layers of the stack. For example, near-magic-angle twisted bilayer graphene (TBG) commonly shows superconductivity, yet a TBG sample…
View article: Thermal relaxation of strain and twist in ferroelectric hexagonal boron nitride moiré interfaces
Thermal relaxation of strain and twist in ferroelectric hexagonal boron nitride moiré interfaces Open
New properties can arise at van der Waals (vdW) interfaces hosting a moiré pattern generated by interlayer twist and strain. However, achieving precise control of interlayer twist/strain remains an ongoing challenge in vdW heterostructure …
View article: Quantitative determination of twist angle and strain in Van der Waals moiré superlattices
Quantitative determination of twist angle and strain in Van der Waals moiré superlattices Open
Scanning probe techniques are popular, non-destructive ways to visualize the real space structure of Van der Waals moirés. The high lateral spatial resolution provided by these techniques enables extracting the moiré lattice vectors from a…
View article: Deterministic fabrication of graphene hexagonal boron nitride moiré superlattices
Deterministic fabrication of graphene hexagonal boron nitride moiré superlattices Open
The electronic properties of moiré heterostructures depend sensitively on the relative orientation between layers of the stack. For example, near-magic-angle twisted bilayer graphene (TBG) commonly shows superconductivity, yet a TBG sample…
View article: Thermal relaxation of strain and twist in ferroelectric hexagonal boron nitride moiré interfaces
Thermal relaxation of strain and twist in ferroelectric hexagonal boron nitride moiré interfaces Open
New properties can arise at van der Waals (vdW) interfaces hosting a moiré pattern generated by interlayer twist and strain. However, achieving precise control of interlayer twist/strain remains an ongoing challenge in vdW heterostructure …
View article: Torsional force microscopy of van der Waals moirés and atomic lattices
Torsional force microscopy of van der Waals moirés and atomic lattices Open
In a stack of atomically thin van der Waals layers, introducing interlayer twist creates a moiré superlattice whose period is a function of twist angle. Changes in that twist angle of even hundredths of a degree can dramatically transform …
View article: Torsional Force Microscopy of Van der Waals Moirés and Atomic Lattices
Torsional Force Microscopy of Van der Waals Moirés and Atomic Lattices Open
In a stack of atomically-thin Van der Waals layers, introducing interlayer twist creates a moiré superlattice whose period is a function of twist angle. Changes in that twist angle of even hundredths of a degree can dramatically transform …
View article: Nanoscale Electronic Transparency of Wafer-Scale Hexagonal Boron Nitride
Nanoscale Electronic Transparency of Wafer-Scale Hexagonal Boron Nitride Open
Monolayer hexagonal boron nitride (hBN) has attracted interest as an ultrathin tunnel barrier or environmental protection layer. Recently, wafer-scale hBN growth on Cu(111) was developed for semiconductor chip applications. For basic resea…