Browse Physics

Published November 16, 2009

Magnetism Nanophysics

First-principles calculations explore how magnetic interactions impede the formation of atomically thin wires.

Published October 5, 2009

Fluid Dynamics Nanophysics

Rotating electric fields can power the flow of water along a nanochannel.

Published August 17, 2009

Nanophysics

Fullerenes enclosing a metallic complex are found to form an ordered array with preferred alignment on a copper surface.

Published May 22, 2009

Nanophysics

A molecular network on a copper surface serves as a template for growing nanowires of uniform size from a range of metals.

Published April 27, 2009

Nanophysics

First-principles calculations predict that a thin layer of VO₂ sandwiched between TiO₂ layers has electronic states that exhibit both linear and quadratic dispersion.

Published April 20, 2009

Nanophysics

A critical thickness below which thin films of the metallic ferromagnet SrRuO₃ become insulating and lose their ferromagnetic properties has been determined.

Published April 14, 2009

Nanophysics

Coupling two electromechanical oscillators can extend the range over which each individual device is practically useful.

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 23, 2009

Nanophysics Nonlinear Dynamics

Molecular dynamics simulations unveil an example of dynamical symmetry breaking at the nanoscale.

Published March 16, 2009

Magnetism Nanophysics

An advance in magnetic resonance force microscopy enhances its chemical sensitivity and opens up the possibility of identifying different organic substances at the nanoscale.

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 12, 2008

Nanophysics

Individual molecules can be accurately positioned using a scanning tunneling microscope tip by transferring the energy of internal molecular vibrations into a controlled translational motion.

Published November 10, 2008

Nanophysics

The rotation of individual large molecules adsorbed onto a gold surface has been observed with a scanning tunneling microscope.

Published August 18, 2008

Nanophysics Optics

The response of nanostructured metal strips to an electromagnetic field may turn out to be similar to that of atomic gases. Periodic arrays of these artificial metal “molecules” could in principle form a metamaterial that slows light pulses and is easily integrated into optical circuits.

Published July 14, 2008

Nanophysics Optics

Single photon emission is normally only observed in systems, such as atoms, that are quantum confined in all directions. Now, scientists have shown that carbon nanotubes, which are quasi-one-dimensional materials, can also act as single photon emitters.