Title 



The ground states of the twocomponent order parameter superconductor
 
Author 



 
Abstract 



We show that in presence of an applied external field the twocomponent order parameter superconductor falls in two categories of ground states, namely, in the traditional Abrikosov ground state or in a new ground state fitted to describe a superconducting layer with texture, that is, patched regions separated by a phase difference of pi. The existence of these two kinds of ground states follows from the sole assumption that the total supercurrent is the sum of the two individual supercurrents and is independent of any consideration about the free energy expansion. Uniquely defined relations between the current density and the superfluid density hold for these two ground states, which also determine the magnetization in terms of average values of the order parameters. Because these groundstate conditions are also Bogomolny equations we construct the free energy for the twocomponent superconductor which admits the Bogomolny solution at a special coupling value. Copyright (C) EPLA, 2010   
Language 



English
 
Source (journal) 



Europhysics letters.  Paris  
Publication 



Paris : 2010
 
ISSN 



02955075
 
Volume/pages 



92:1(2010), 5 p.
 
Article Reference 



17004
 
ISI 



000284469900027
 
Medium 



Eonly publicatie
 
Full text (Publishers DOI) 


  
