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ABSTRACT:
Alex Zettl, Vincent Crespi, Marvin Cohen and Steven Louie from Berkeley Lab have introduced heptagons and pentagons
into a hexagonal, semimetallic, graphite network, and obtained
metallic, strong, covalently-bonded materials of pure carbon.
This new invention allows the formation of metallic, pure
carbon films and bulk materials, some of which are predicted
to be superconductors.
The new metallic carbon materials have improved metallic
properties that will work well in any application that presently
uses graphite. In addition, these light-weight, metallic materials
are extremely strong in the planar directions. They can be
used when a mechanically strong and/or metallic film is required.
They can be used in field emitters and electromagnetic shielding;
in thin film resistors, heaters, radiation detectors and interconnects
in devices; high strength conductive fibers; high temperature
electrical components; battery electrodes and lubricants.
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