DOI Number :
Hits : 10

Variation of Oxygen Pressure in Growing Bi2Sr2CaCu2O8+δ Single Crystal Superconductors and its Effects

Darminto, A.A. Nugroho, A. Rusydi, A.A. Menovsky & W. Loeksmanto


Abstract. This paper presents the results of growing Bi2Sr2CaCu2O8+δ single crystal superconductors by means of traveling  solvent floating zone (TSFZ) method in various atmospheres, namely in air and in oxygen (O2) of 1 and 2.5 bar. Variations of oxygen contents due to different atmospheres in the growing process lead to a variety of molar compositions of the as-grown crystals as well as formation of impurity phases. It is found from the result of sample characterization that the incrcase of oxygen content in the crystal lowers its critical temperature (Tc) and anisotropy (γ). Further the lowering of anisotropy incrcases the second peak field (H2p) and causes a shift of the irreversibility line (Hirr) to the higher temperature and magnetic field in the H-T phase diagram, signifying the enhancement of vortex pinning effect due to increasing concentration of oxygen dopant.

Keywords: single crystal; superconductors; oxygen doping; anisotropy; magnetic properties; pinning effect

Download Article
Bahasa Indonesia | English


Begin on 10 October 2014 this website is no longer activated for article process in Journal of Mathematical and Fundamental Sciences, Journal of Engineering and Technological Sciences, Journal of ICT Research and Applications and Journal of Visual Art and Design. The next process will be proceeded under new website at

For detail information please contact us to:

       ITB Journal Visitor Number #16133704       
       Jl. Tamansari 64, Bandung 40116, Indonesia Visitor IP Address #       
       Tel : +62-22-250 1759 ext. 121 2011 Institut Teknologi Bandung       
       Fax : +62-22-250 4010, +62-22-251 1215 XHTML + CSS + RSS       
       E-mail : or Developed by AVE