New Topics in Superconductivity Research

"New Topics in Superconductivity Research" by Barry P. Martins
Nova Science Publishers | English | May 2, 2006 | ISBN: 1594549850 | PDF | 9,1 MB

Superconductivity is the ability of certain materials to conduct
electrical current with no resistance and extremely low losses. High
temperature superconductors, such as La2-xSrxCuOx (Tc=40K) and
YBa2Cu3O7-x (Tc=90K), were discovered in 1987 and have been actively
studied since. In spite of an intense, world-wide, research effort
during this time, a complete understanding of the copper oxide
(cuprate) materials is still lacking. Many fundamental questions are
unanswered, particularly the mechanism by which high-Tc
superconductivity occurs. More broadly, the cuprates are in a class of
solids with strong electron-electron interactions. An understanding of
such "strongly correlated" solids is perhaps the major unsolved problem
of condensed matter physics with over ten thousand researchers working
on this topic. High-Tc superconductors also have significant potential
for applications in technologies ranging from electric power generation
and transmission to digital electronics. This ability to carry large
amounts of current can be applied to electric power devices such as
motors and generators, and to electricity transmission in power lines.
For example, superconductors can carry as much as 100 times the amount
of electricity of ordinary copper or aluminium wires of the same size.
Many universities, research institutes and companies are working to
develop high-Tc superconductivity applications and considerable
progress has been made. This volume brings together new leading-edge
research in the field.

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