DocumentCode
962264
Title
Phase diagram of electron-beam codeposited Nb3 Ge: 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 O2 increases 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
Link To Document