Microwave Cavity Test for Superconductivity

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The first part of this paper describes the Meissner effect in superconductors which serves as the most definitive evidence for superconductivity. It is shown that the microwave perturbation technique may be used to demonstrate this effect. By measuring the changes of resonant frequency and inverse quality factor Q of a microwave cavity with a small volume of sample loading, the Meissner effect can be shown by using the Slater perturbation equation. The experimental system is described with details and the basic principle of each component discussed. The second part of this work describes the technique employed to do the actual ... continued below

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Tang, Shan December 2001.

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This thesis is part of the collection entitled: UNT Student Graduate Works and was provided by UNT Libraries to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 124 times . More information about this thesis can be viewed below.

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  • Tang, Shan

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Description

The first part of this paper describes the Meissner effect in superconductors which serves as the most definitive evidence for superconductivity. It is shown that the microwave perturbation technique may be used to demonstrate this effect. By measuring the changes of resonant frequency and inverse quality factor Q of a microwave cavity with a small volume of sample loading, the Meissner effect can be shown by using the Slater perturbation equation. The experimental system is described with details and the basic principle of each component discussed. The second part of this work describes the technique employed to do the actual measurements. The experiments were conducted on samples of Gallium Arsenide (GaAs) and lead zirconate titanate (PZT) to look for the possible high temperature superconductivity properties. Results of these experiments are presented and discussed. Conclusion and suggestions to future exploration are made.

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UNT Student Graduate Works

This collection houses graduate student works other than theses and dissertations. All materials have been previously accepted by a professional organization or approved by a faculty mentor. The collection includes, but is not limited to problems in lieu of thesis, supplemental files associated with theses and dissertations, posters, recitals, presentations, articles, reviews, book chapters, and artwork. __Some items in this collection are restricted to use by the UNT community.__

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Creation Date

  • December 2001

Added to The UNT Digital Library

  • Sept. 25, 2007, 10:41 p.m.

Description Last Updated

  • March 24, 2016, 4:15 p.m.

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Citations, Rights, Re-Use

Tang, Shan. Microwave Cavity Test for Superconductivity, thesis, December 2001; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc2996/: accessed March 29, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .