Archive for the 'Physics' Category

Replacing Silicone with Carbon

A key discovery at Rensselaer Polytechnic Institute could help advance the role of graphene as a possible heir to copper and silicon in nanoelectronics. Researchers believe graphene’s extremely efficient conductive properties can be exploited for use in nanoelectronics.

Graphene, a one-atom-thick sheet of carbon, eluded scientists for years but was finally made in the laboratory in 2004 with the help of everyday, store-bough transparent tape. This research is an important first step, For developing a way to mass produce metallic graphene that could one day replace copper as the primary interconnect material on nearly all computer chips.

IBM researchers push MRI imaging to nanoscale

Researchers at IBM’s Almaden Research Center have developed magnetic resonance imaging (MRI) techniques to visualize nanoscale objects. The new techniques are a major milestone in the quest to build a microscope that could “see” individual atoms in three dimensions. Using Magnetic Resonance Force Microscopy (MRFM), IBM researchers have captured two-dimensional images of objects as small as 90 nanometers.

MRFM offers imaging 60,000 times more sensitive than current MRI technology. MRFM uses what is known as force detection to extend the limits of conventional MRI and view structures that would otherwise be too small to be detected.