AAU-ETD AAU-ETD
 

Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Science >
Thesis - Physics >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2538

Title: APPLICATION OF VARIATIONAL METHODS ON THE THEORY OF SUPERCONDUCTIVITY
Authors: Ewunetie, Amare Muche
Advisors: Professor Vadim N. MAL’NEV
Keywords: physics
SUPERCONDUCTIVITY
Copyright: 30-Jun-2009
Date Added: 4-May-2012
Publisher: AAU
Abstract: There are two main theories in superconductivity: i) Microscopic or (BCS) theory which describes why materials are superconducting, ii) The phenomenological theory which de- scribes the properties of superconductors in magnetic fields; Unlike the microscopic (BCS) theory the phenomenological theory is based on a so-called phenomenological order pa- rameter. Most physical problems in physics can not be solved exactly, and hence they need to be dealt with approximately. The principles of variations as developed for providing an elegant description of a wide variety of physical phenomena; Here we are using this method to solve problems related to the phenomenological theory of superconductivity, which includes London’s equation, first and second Ginzburg-Landau equation and in the case of weak superconductivity, the penetration of the magnetic field on Josephson’s contact between two superconductors, when there is an insulator between them, i.e Ferrell-Prange equation and the physical phenomena on the junction.
URI: http://hdl.handle.net/123456789/2538
Appears in:Thesis - Physics

Files in This Item:

File Description SizeFormat
2001.14 MBAdobe PDFView/Open

Items in the AAUL Digital Library are protected by copyright, with all rights reserved, unless otherwise indicated.

 

  Last updated: May 2010. Copyright © Addis Ababa University Libraries - Feedback