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Zeitschrift für Physik B Condensed Matter

, Volume 24, Issue 3, pp 273–278 | Cite as

Superconducting transition temperatures of amorphous binary alloy systems based on Bi, Pb, Ga and Be

  • J. Petersen
Article

Abstract

Quench condensed binary alloy films are produced by evaporation from two separated furnaces. The films contain the whole composition range of the respective alloy system in well defined arrangement.T c is measured as a function of concentration. Eight predominantly amorphous alloy systems are studied: Bi—Ga, Pb—Ga, Pb—Bi, Be—Bi, Be—Pb, Be—Ga, Be—Al, Be—Li. In Bi—Ga and Pb—GaT c is a linear function of concentration in the amorphous composition range. In Pb—BiT c has a maximum. All Be-alloys show lower transition temperatures than pure quench condensed Be. Except for Be—Li all systems have aT c minimum. The experiments are compared to aT c calculation using tunelling spectroscopy data. Except for the Be-alloys the agreement is satisfying.

Keywords

Neural Network Evaporation Furnace Transition Temperature Nonlinear Dynamics 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • J. Petersen
    • 1
  1. 1.I. Physikalisches InstitutUniversität GöttingenGöttingenFederal Republic of Germany

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