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Article: Nanotubes show signs of zero resistance at room temperature.
- Article from:
- Advanced Ceramics Report
- Article date:
- February 1, 2002
CopyrightCOPYRIGHT 2002 International Newsletters. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Researchers in the USA have discovered what they describe as "subtle signs" of superconductivity at room temperature in nanotubes of carbon.
Guo-meng Zhao and Yong Sheng Wang of the University of Houston in Texas admit that their research did not achieve zero electrical resistance at room temperature, but said their results were "the closest anyone's got so far".
Zhao adds "I think all the experimental results are consistent with superconductivity, but I cannot rule out other explanations."
Zhao and Wang studied the effects of magnetic fields on hollow fibres of carbon known as multi-wall carbon nanotubes. Each nanotube is typically 1000 nm in ...