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For the first time in thirty five years, the clockspeed of the fastest commercial computer chips has not increased. Is the semiconductor industry just pausing for breath or about to suffer a fate similar to that of aerospace?
The demonstration of switches and logic devices made purely from carbon nanotubes, without the need for an external gate, puts nanotubes at the forefront of next-generation electronics.
A comparative study of silica-filled polystyrene and thin polystyrene films offers a new framework both for quantifying the typical shift in the glass-transition temperature of such systems, and prospects for the design of new nanocomposites.
In bulk semiconductors, the absorption of one photon of energy greater than the bandgap leads to one exciton. In quantum dots, however, it could be possible to create multiple excitons from a single high-energy photon, a finding with dramatic implications for the efficiencies of devices such as...
Superconductivity and antiferromagnetism are in fierce competition in high-temperature superconductors. However, this competition has the unexpected benefit that the antiferromagnetism improves the capacity of the superconductor to resist magnetic fields.
Smart coupling of light-induced molecular motion with a change in surface wettability provides an efficient way to drive a liquid drop up an incline.
Many physical properties of high-temperature superconductors are two-dimensional phenomena derived from their square-planar CuO2 building blocks. This is especially true of the magnetism from the copper ions. As mobile charge carriers enter the CuO2 layers, the antiferromagnetism of the parent...
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