Frontiers in Superconductivity Research

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Nova Publishers, 2003 - Science - 244 pages
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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, worldwide, 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 aluminum 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 leading research in this growth field.
 

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Contents

A Review
1
Equilibrium and Dynamic Properties of dwave Ceramic Superconductors
53
Pairing Symmetry of the Superconducting Gap Analyzed by Means of Measurement for Inhomogeneous HighTc Superconductors
75
Processing and Characterization of MgB2
103
Fabrication and Characterization of Superconducting MgB2 Thin Films InSitu Grown by dc Magnetron Sputtering
145
The Role of Nonlocality in the Pinning Properties of Borocarbide Materials
181
Vortices in lowTc layered TaxGe1xGe superconductors
199
Index
241
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