Secretariat:
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SYMPOSIUM G In 2007 the phenomena of superconductivity is completing 96 years of its discovery by Kammerlingh Onnes back to 1911, 21 years of the discovery of high Tc material by K. Alex Müller and J. Georg Bednorz and 7 years of the recent discovery of superconductivity in MgB2 by Jun Akimitsu and coworkers. The historical sequence of discoveries in different periods and the numerous Nobel Prize attributed to this subject attest the importance of superconductivity in the scientific context. Also can be mentioned the realization of its potential of innovative technological applications in distinct areas as medicine, biology, chemistry, physics, electronics, nanotechnology, and materials science and as replacement technology under development for commercialization in conversion, storage, control, and distribution of energy. Related to the present symposium, the discovery of superconductivity at 38 K in the MgB2 intermetallic compound in 2001 have spurred renewed interest in pursuiting of new superconducting materials with increasing critical temperature. Among them can be mentioned the intermetallic borides, carbides, and nitrides, with intriguing physical properties. Another new superconducting materials, such as carbon compounds with their peculiar properties suggesting localized superconductivity and showing singular magnetic properties, and the heavy fermions that exhibit simultaneous superconductivity and magnetic ordering which arouse strong scientific interest. The global concerning with clean, renewable and economical sources of energy, as well as with its efficient storage, control, transmission, and distribution, the application of superconductivity has becoming more and more important. Recently, important progresses were achieved in the practical and cost-effective use of HTS in electrical machines, magnetic energy storage systems, current limiters, and high-field magnets for NMR thanks to the availability of long-lengths of the first generation conductors based on BSCCO compounds along with the commercial release of the second generation conductors based on YBCO thin films. The symposium focus will be the discussion of the new superconducting materials that present the perspective of unusual physical mechanism of superconductivity as well as the practical aspects of superconductivity applications. The scientific program will include invited presentations, oral communications, and posters. Contributions are welcomed in the following but not limited themes:
Symposium Organizers Prof. Dr. Carlos Alberto Baldan – EEL – USP Prof. Dr. Antonio Jefferson da Silva Machado – EEL - USP Prof. Dr. José Albino Oliveira de Aguiar - UFPE
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Copyright 2007 – 6th Brazilian MRS Meeting – Brazilian Materials Research Society |
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