Supercooling and trapped flux in superconducting molybdenum

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dc.contributor.advisorRorschach, Harold E., Jr.en_US
dc.creatorPinatti, Daltro Garciaen_US
dc.date.accessioned2016-04-22T21:58:50Zen_US
dc.date.available2016-04-22T21:58:50Zen_US
dc.date.issued1967en_US
dc.description.abstractThe supercooling properties of Molybdenum were studied through the use of a Dynamic Method. The KAPPA factor of Ginsburg-Landau was calculated. Using the De Gennes correction this value is 0.22 ± .02. The structure of the phase transition as a function of the rate of sweep of the magnetic field, both for increasing and decreasing field, was studied. An attempt was made to interpret the superconducting-normal transition in terms of the electrodynamic theory of Pippard and Lifshitz. This was not sufficient, and a slow process in the beginning of the transition is necessary. Experimental evidence for this process is presented, and it suggests that surface thermal resistance may be the cause for the slow process. The dynamic method proves to be a potentially useful method for measurements of electrical conductivity. At 751 °K for Molybdenum we measure [see PDF for formula]. The character of the normal-superconducting transition indicates that 2/3 of the cross section of the sample has a sudden flux expulsion. The remaining 1/3 seems to have a gradual expulsion with decreasing field.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent54 ppen_US
dc.identifier.callnoThesis Phys. 1967 Pinattien_US
dc.identifier.citationPinatti, Daltro Garcia. "Supercooling and trapped flux in superconducting molybdenum." (1967) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/89880">https://hdl.handle.net/1911/89880</a>.en_US
dc.identifier.digitalRICE0914en_US
dc.identifier.urihttps://hdl.handle.net/1911/89880en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleSupercooling and trapped flux in superconducting molybdenumen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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