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Title:The critical magnetic field curves of superconducting molybdenum and cadmium above 0.03 degrees K
Author(s):Hamblen, David Gordon
Doctoral Committee Chair(s):Mapother, D.E.
Department / Program:Physics
Discipline:Physics
Degree:Ph.D.
Genre:Dissertation
Subject(s):critical magnetic field curves
superconducting molybdenum
superconducting cadmium
Abstract:The critical magnetic field curves of molybdenum and cadmium have been measured from T to 0.03 oK, using the critical c field curve of aluminum as a thermometer. The data, when extrapolated to T = 0, yield values of H = 96.24 gauss and y = 1.835 o mJ/(mole °K2), for Mo, and H = 28.05 gauss and y = 0.685 mJ/(mole K2) for Cd. The extrapolation to H = 0 yields T values of 0.9l34°K and 0.5l5°K for Mo and Cd, respectively. These values, together with the experimental data, are used to calculate the superconducting electronic entropy and the deviation of the critical field curve from parabolicity over the entire temperature range. The results show satisfactory agreement with previous measurements, and with Clem's theory of anisotropy.
Issue Date:1969
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/25804
Rights Information:1969 David Gordon Hamblen
Date Available in IDEALS:2011-07-14
Identifier in Online Catalog:6074648


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