Title 



Analytic treatment of vortex states in cylindrical superconductors in applied axial magnetic field


Author 





Abstract 



We solve the linear GinzburgLandau (GL) equation in the presence of a uniform magnetic field with cylindrical symmetry and we find analytic expressions for the eigenfunctions in terms of the confluent hypergeometric functions. The discrete spectrum results from an implicit equation associated to the boundary conditions and it is resolved in analytic form using the continued fractions formalism. We study the dependence of the spectrum and the eigenfunctions on the sample size and the surface conditions for solid and hollow cylindrical superconductors. Finally, the solutions of the nonlinear GL formalism are constructed as expansions in the linear GL eigenfunction basis and selected by minimization of the free energy. We present examples of vortex states and their energies for different samples in enhancing/suppressing superconductivity surroundings.  

Language 



English


Source (journal) 



Journal of mathematical physics.  New York, N.Y. 

Publication 



New York, N.Y. : 2010


ISSN 



00222488


Volume/pages 



51:8(2010), p. 082903,1082903,29


Article Reference 



082903


ISI 



000281905000026


Medium 



Eonly publicatie


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