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[资源] 《Science》(化学、材料)连载----(11 July 2008)

ENGINEERING: Phase-Change Materials for Electronic Memories
Greg Atwood
Science 11 July 2008: 210-211.
The materials used in rewritable CDs and DVDs also show promise as electronic memories systems.

Control of Exciton Fluxes in an Excitonic Integrated Circuit
Alex A. High, Ekaterina E. Novitskaya, Leonid V. Butov, Micah Hanson, and Arthur C. Gossard
Science 11 July 2008: 229-231.
Published online 19 June 2008 [DOI: 10.1126/science.1157845] (in Science Express Reports)
Coupled quantum-wells structures, patterned to create electron-hole circuits, can perform simple logic operations on the optical input signals.

Optical Pumping and Vibrational Cooling of Molecules
Matthieu Viteau, Amodsen Chotia, Maria Allegrini, Nadia Bouloufa, Olivier Dulieu, Daniel Comparat, and Pierre Pillet
Science 11 July 2008: 232-234.
A broadband laser pulse can remove residual vibrational energy from molecules via excitation and relaxation cycles, allowing them to be cooled to low temperatures.

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