Secretariat Address

4encontro@sbpmat.org.br

Phone: 55 81 21267643

Departamento de Física - UFPE
Av. Prof. Luiz de Barros Freire s/n – Cidade Universitária
50670-901 – Recife – PE


 

Scientific Program

SYMPOSIUM G
SUPERCONDUCTING MATERIALS


Just after the discovery of superconductivity by Kamerlingh Onnes in 1911, scientists have searched for applications of the new phenomenon. Until 1986 the applications were mainly concentrated in the conception and production of superconducting magnets to generate high magnetic fields for laboratory use. More recently, superconducting magnets become widely used in systems for diagnosis with nuclear magnetic resonance. Small superconducting devices also find application at that time, as in the SQUID magnetometers.

The discovery of high temperature superconductors (HTSC) was extremely important both for the opening of enormous possibilities for practical applications as well as for the understanding of the basic mechanisms of superconductivity. These reasons strongly motivated the Physics Nobel prizes that were given in 1987 to K. Alexander Muller e J. Georg Bednorz and in 2003 to Alexei Abrikosov and Vitaly Ginzburg.

In a world concerned with clean and economical sources of energy, as well as with its efficient storage and long distance transmission, the study of superconductivity becomes more and more relevant. The discovery of new materials, the characterization and improvements of the known materials, the development of applications and the theoretical questions related to these issues are a challenge and a stimulus for partnership between basic science, applied science, innovation and industry. The expectation of strong impacts of superconductivity in the development of new technologies gave origin to the conference of Applied Superconductivity that congregate more than 1200 participants. Recently, important progress was achieved in the practical and cost-effective use of HTSC in motors, energy storage and transmission, synchronous high power condensers, 13kA connectors, fault current limiters and magnets for NMR imaging. Important applications of HTSC in electronic devices also become available. Among these are filters for wireless communication, Josephson junctions for magnetic field detection and quantum computation and many others. Not to forget the glamorous use of superconductivity in levitators, as in the Maglev high-speed train. Almost a hundred years passed since the original Kamerling Onnes discovery, superconductivity remains as an exciting and extremely active research field. New materials are discovered frequently. Unanticipated and surprising applications enter in the market place. All these happens in part due to the development of new materials and to new routes for preparing, processing and handling the HTSC, which ranges along the more complex systems ever employed in practical applications.

The symposium will focus on new methods related to the synthesis and characterization of low and high temperature superconducting materials, as well as on their practical applications. Emphasis will be given on:

  • Preparation methods aimed to improve the material's superconducting properties.
  • State of the art and practical applications.
  • Characterization of the fundamental properties.

Contributions are welcomed in the areas of metallic, oxides, carbon-based, borocarbides, diborides and heavy fermions superconductors. The contributions should be classified according to the following topics:

  • Superconducting materials: Synthesis and Processing
  • Superconducting materials: Applications
  • Superconducting materials: Metals and intermetalics
  • Superconducting materials: Copper-oxide ceramics, melt-textured, single-crystals, thin films
  • Superconducting materials: Other oxides
  • Superconducting materials: Carbon-based systems
  • Superconducting materials: Borocarbides, nitrites, heavy fermions
  • Superconducting materials: MgB 2 and other borates
  • Superconducting materials: Nanostructured systems
  • Superconducting materials: Granular systems

 

Symposium Organizers

Chair:
Elisa B. Saitovittch
elisa@cbpf.br
CBPF

Co-chair:
Paulo Pureur
ppureur@if.ufrgs.br
UFRGS

 

 

Copyright 2005
IV Encontro da SBPMat - Sociedade Brasileira de Pesquisas em Materiais