Electronic materials with nanoscale curved geometries
As the dimensions of a material shrink from an extended bulk solid to a nanoscale structure,
size and quantum confinement effects become dominant, altering the properties of the …
size and quantum confinement effects become dominant, altering the properties of the …
Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
When two sheets of graphene are stacked at a small twist angle, the resulting flat
superlattice minibands are expected to strongly enhance electron-electron interactions …
superlattice minibands are expected to strongly enhance electron-electron interactions …
Quantum imaging of current flow in graphene
Since its first discovery in 2004, graphene has been found to host a plethora of unusual
electronic transport phenomena, making it a fascinating system for fundamental studies in …
electronic transport phenomena, making it a fascinating system for fundamental studies in …
Widefield quantum microscopy with nitrogen-vacancy centers in diamond: Strengths, limitations, and prospects
ABSTRACT A dense layer of nitrogen-vacancy (NV) centers near the surface of a diamond
can be interrogated in a widefield optical microscope to produce spatially resolved maps of …
can be interrogated in a widefield optical microscope to produce spatially resolved maps of …
Scanning gate microscopy in a viscous electron fluid
We measure transport through a Ga [Al] As heterostructure at temperatures between 32 mK
and 30 K. Increasing the temperature enhances the electron-electron scattering rate and …
and 30 K. Increasing the temperature enhances the electron-electron scattering rate and …
Simultaneous voltage and current density imaging of flowing electrons in two dimensions
A variety of physical phenomena associated with nanoscale electron transport often results
in non-trivial spatial voltage and current patterns, particularly in nonlocal transport regimes …
in non-trivial spatial voltage and current patterns, particularly in nonlocal transport regimes …
Imaging work and dissipation in the quantum Hall state in graphene
Topology is a powerful recent concept asserting that quantum states could be globally
protected against local perturbations,. Dissipationless topologically protected states are …
protected against local perturbations,. Dissipationless topologically protected states are …
Specular electron focusing between gate-defined quantum point contacts in bilayer graphene
We report multiterminal measurements in a ballistic bilayer graphene (BLG) channel, where
multiple spin-and valley-degenerate quantum point contacts (QPCs) are defined by …
multiple spin-and valley-degenerate quantum point contacts (QPCs) are defined by …
[HTML][HTML] Electron wave and quantum optics in graphene
In the last decade, graphene has become an exciting platform for electron optical
experiments, in some aspects superior to conventional two-dimensional electron gases …
experiments, in some aspects superior to conventional two-dimensional electron gases …
A two-dimensional Dirac fermion microscope
The electron microscope has been a powerful, highly versatile workhorse in the fields of
material and surface science, micro and nanotechnology, biology and geology, for nearly 80 …
material and surface science, micro and nanotechnology, biology and geology, for nearly 80 …