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Title:Superconductivity of Dilute Indium-Thallium Alloys
Author(s):Gubser, Donald U.
Contributor(s):Mapother, D.E.
Abstract:Critical field measurements on the InTl alloy system covering the concentration range of 0 to 7 percent thallium have been made. Since indium and thallium have the same number of valence electrons, the InTl alloy system should be free from valence effects. It is therefore well suited for studying anisotropy induced changes in superconducting properties. The critical temperatures were determined from an extrapolation of the critical field data near T , and the critical fields at T=O were determined from an extrapolation of the data below 1 0 K. Measurements down to T=0.35 o K were made to enable an accurate determination of y, the temperature coefficient of normal electronic specific heat. No effect on y due to alloying was observed. Changes in the quantities Tc' Ho/Tc' and dHc/dT)T=Tc are compared to the anisotropy theory of Markowitz and Kadanoff and of Clem. Significant departures from theoretical predictions are observed.
Issue Date:1969-06
Genre:Technical Report
Other Identifier(s):6073007
Rights Information:© 1969 Donald Urban Gubser
Date Available in IDEALS:2010-06-25
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