Browse Physics

Published September 28, 2009

Mesoscopics

By generalizing the idea of a moveable mirror, it may be possible to observe the dynamical Casimir effect.

Published August 24, 2009

Gravitation Mesoscopics

Can quantum electronic devices offer an experimental system that mimics the behavior of black holes?

Published August 17, 2009

Mesoscopics

In integer quantum Hall systems, do theory and experiment agree for the wrong reasons?

Published July 6, 2009

Graphene Mesoscopics

Can a patterned semiconducting heterostructure yield a better “graphene”?

Published May 11, 2009

Mesoscopics

Giant jumps in the current-voltage characteristics of disordered films could be the first evidence that electron transport in insulators can occur in the absence of phonons.

Published April 6, 2009

Mesoscopics Semiconductor Physics

Random disorder in topological insulators leads to an insulating phase reminiscent of one known for years in two-dimensional systems.

Published March 30, 2009

Mesoscopics Nanophysics Spintronics

Optical measurements in electron gases at low temperatures and high magnetic fields show the electron spins are, as predicted, polarized, but that this state is surprisingly delicate.

Published March 9, 2009

Mesoscopics Semiconductor Physics

The finding of one-dimensional, topologically protected conducting states on the surface of bismuth suggests the possibility of a quantum spin Hall effect in one dimension.

Published January 26, 2009

Mesoscopics Nanophysics

Measurements of how out-of-equilibrium electrons lose energy along a carbon nanotube reveal that they do not significantly scatter over several microns.

Published November 17, 2008

Mesoscopics

Researchers report the observation of a Kondo effect when charge and spin on a double quantum dot system are entangled.

Published November 12, 2008

Mesoscopics

Researchers explore how the excitonic condensate phase in a bilayer electron gas depends on the relative electron densities of the two layers.

Published November 3, 2008

Graphene Mesoscopics

Experiments suggest that one-dimensional behavior is reflected in the transport properties of graphene nanoribbons.

Published September 8, 2008

Mesoscopics Semiconductor Physics

A new study is looking at how disorder affects the conducting states in a topological insulator—revealing one of many ways these unusual materials are different from conventional insulators.

Published August 25, 2008

Graphene Mesoscopics

By adsorbing and desorbing nitrogen dioxide, it is possible to add and remove charge carriers from graphene and induce a reversible metal-insulator transition.

Published August 18, 2008

Mesoscopics

Researchers find that tunneling between the two layers of a bilayer two-dimensional electron gas is proportional to their area. Although the result may seem intuitive it poses a challenge to current theory.

Published August 6, 2008

Mesoscopics

The formation of Landau levels in a magnetic field is the hallmark of a two-dimensional electron system, such as graphene. Experiments now suggest that Landau levels can also form in carbon nanotubes.

Published August 5, 2008

Mesoscopics

Measurements show that the tunneling of electrons through a quantum dot has a complex dependence on magnetic field and the shape of the dot. These results challenge existing pictures of spin-dependent tunneling in quantum dot devices.