• DocumentCode
    962264
  • Title

    Phase diagram of electron-beam codeposited Nb3Ge: The influence of oxygen and other gases

  • Author

    Hallak, A.B. ; Hammond, R.H. ; Geballe, T.H. ; Zubeck, R.B.

  • Author_Institution
    University of Jordan, Amman, Jordan
  • Volume
    13
  • Issue
    1
  • fYear
    1977
  • fDate
    1/1/1977 12:00:00 AM
  • Firstpage
    311
  • Lastpage
    314
  • Abstract
    Oxygen, air, or chlorine gas present in the vacuum system during evaporation extend the Ge-rich boundary of the A15 phase towards the ideal 3:1 ratio. X-ray evidence indicates the presence of an amorphous component below 775°C which is detrimental to the superconductivity and which is accompanied by an abrupt increase in the A15 lattice constant. Preliminary Auger results indicate that the Nb:O ratio first decreases as the partial pressure of O2increases and then remains constant.
  • Keywords
    Conducting films; Electron radiation effects; Superconducting materials; Capacitive sensors; Critical current; Impurities; Laboratories; Metastasis; Niobium; Physics; Temperature; Testing; Vacuum systems;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1977.1059443
  • Filename
    1059443