Overview

Superconductors (SCs) are attractive materials in all respects for any community. They provide a deep insight into the physical properties of the condensed matters and also have useful applications as ultra-low-power-dissipation systems that can help resolve the present energy problems. In particular, the recent advancement of carbon-based new superconductors (CNSCs) is significant. Before 2004, the superconducting transition temperature ( T c) of carbon-based SCs was below 1 K, except in fullerene clusters. However, in 2004, a Russian group discovered that diamond highly doped with boron could be an SC at T c = 4 K. The following year, a group from Cambridge found that calcium-intercalated graphite could be an SC with T c = 11.5 K. In 2006 and 2008, the editor s group from Japan also discovered that carbon nanotubes could be SCs at T c = 12 K. Since then, research on CNSCs has increased notably. A small mass of carbon can produce high phonon frequency and high Debye temperature. Combining these with other specified properties of CNSCs (such as one-dimensional electronic states) is highly expected to open doors to high- T c superconductivity like those of CuO2- and Fe-based SCs, which were the only SCs to show T c > 40 K in the past. CNSCs, such as diamond, graphite, carbon nanotubes, fullerenes, and others, are a very attractive field of research, and this book is the first to describe their basic physics and the recent advances toward high T c in this field.

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9781322629230

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Junji Haruyama is an associated professor at Aoyama Gakuin University, Faculty of Science and Technology, Material Science course. He was graduated from WASEDA University (Tokyo, Japan) at 1985. Right after the graduation, he entered NEC Corporation and studied basic physics of ultra-high-speed compound semiconductor transistors and also quantum devices until 1994. He got PhD (Physics) by those famous results from WASEDA University at 1996. During 1995-1997, he worked with University of Toronto and Ontario Lightwave research center as a visiting scientist for study of quantum phenomena. Since 1997, he has worked with Aoyama Gakuin University as an associated professor until now. During this term, he was a visiting professor and principal researcher of many famous organizations. He has peer-review publications over 100 and 5 patents, books over 27, and also invited talks over 120. He has been honored by Japanese government s (JST & JSPS) famous grants over 20 and a principal researcher of Japanese government s big projects over 10. He has been also a referee of Japanese government projects over 5 and international Journals over 30, and a member of international committees (organizer, adviser, chairman) over 15 conferences.

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