Space dependence of the order parameter in clean type II superconductors at low temperatures

1977 ◽  
Vol 27 (3) ◽  
pp. 239-240 ◽  
Author(s):  
Yu. N. Ovchinnikov
Keyword(s):  
Low Temperatures ◽  
Order Parameter ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Space Dependence

SUPERCONDUCTIVITY IN HIGH AND VERY HIGH MAGNETIC FIELDS

1991 ◽  
Vol 05 (01n02) ◽  
pp. 353-363 ◽  
Author(s):  
Zlatko Tešanović
Keyword(s):  
Magnetic Fields ◽  
Order Parameter ◽  
Landau Levels ◽  
High Magnetic Fields ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Low Field ◽  
Starting Point ◽  
Electronic Motion ◽  
Very High

An external magnetic field can actually enhance superconductivity, pro vided it is strong enough. If only few lowest Landau levels are occupied, the quasi 1D nature of the electronic motion leads to an enhancement of transition temperature. The orbital frustration of the order parameter is much simplified in this limit. This limit of superconductivity, of great interest in itself, can also be used as a starting point to study orbital frustration in familiar, “low-field”, strongly type II superconductors. I briefly review some of the characteristics of superconductivity in high magnetic fields.

scholarly journals Modified Josephson Relation

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3407-3410
Author(s):  
Jan Koláček ◽  
Pavel Lipavský
Keyword(s):  
Electric Field ◽  
Low Temperatures ◽  
Ohmic Contacts ◽  
Chemical Potential ◽  
Electrochemical Potential ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Effective Electric Field

For type II superconductors, Josephson has shown that vortices moving with velocity v L create an effective electric field E′= -v L ×B V . By definition the effective electric field is gradient of the electrochemical potential, what is the quantity corresponding to voltage observed with the use of Ohmic contacts. It relates to the true electric field E via the local chemical potential μ as E′=E-∇μ/e. We argue that at low temperatures the true electric field in the bulk can be approximated by a modified Josephson relation E=(v S -v L )×B V , where v S is the condensate velocity.

Fluctuations of the Order Parameter in Type-II Superconductors. I. Dirty Limit

1967 ◽  
Vol 159 (2) ◽  
pp. 306-315 ◽  
Author(s):  
Christiane Caroli ◽  
Kazumi Maki
Keyword(s):  
Order Parameter ◽  
Type Ii ◽  
Dirty Limit ◽  
Type Ii Superconductors

Order parameter induced phase shift in the dHvA oscillations in type-II superconductors

1997 ◽  
Vol 101 (8) ◽  
pp. 621-625 ◽  
Author(s):  
T. Maniv ◽  
A.Y. Rom ◽  
I.D. Vagner ◽  
P. Wyder
Keyword(s):  
Phase Shift ◽  
Order Parameter ◽  
Type Ii ◽  
Type Ii Superconductors
Sign in / Sign up

Export Citation Format

Share Document