scholarly journals Self-consistent Bogoliubov–de Gennes theory of the vortex lattice state in a two-dimensional strongly type-II superconductor at high magnetic fields

2017 ◽  
Vol 95 (2) ◽  
Author(s):  
Vladimir Zhuravlev ◽  
Wenye Duan ◽  
Tsofar Maniv
Keyword(s):  
Magnetic Fields ◽  
Vortex Lattice ◽  
High Magnetic Fields ◽  
Type Ii ◽  
Two Dimensional ◽  
Type Ii Superconductor ◽  
Self Consistent ◽  
Lattice State ◽  
Gennes Theory

scholarly journals Acoustic attenuation in a type-II superconductor at high magnetic fields

1998 ◽  
Vol 57 (5) ◽  
pp. 3051-3057 ◽  
Author(s):  
G. M. Bruun ◽  
V. Nikos Nicopoulos ◽  
N. F. Johnson
Keyword(s):  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Type Ii ◽  
Acoustic Attenuation ◽  
Type Ii Superconductor

Interfacial studies in Nb3Sn superconductors

1991 ◽  
Vol 49 ◽  
pp. 590-591
Author(s):  
Ernest L. Hall ◽  
Lee E. Rumaner ◽  
Mark G. Benz
Keyword(s):  
Grain Size ◽  
Grain Boundaries ◽  
Flux Pinning ◽  
Size Control ◽  
High Magnetic Fields ◽  
Type Ii ◽  
Reaction Interface ◽  
Liquid Diffusion ◽  
Type Ii Superconductor ◽  
Grain Size Control

The intermetallic compound Nb3Sn is a type-II superconductor of interest because it has high values of critical current density Jc in high magnetic fields. One method of forming this compound involves diffusion of Sn into Nb foil containing small amounts of Zr and O. In order to maintain high values of Jc, it is important to keep the grain size in the Nb3Sn as small as possible, since the grain boundaries act as flux-pinning sites. It has been known for many years that Zr and O were essential to grain size control in this process. In previous work, we have shown that (a) the Sn is transported to the Nb3Sn/Nb interface by liquid diffusion along grain boundaries; (b) the Zr and O form small ZrO2 particles in the Nb3Sn grains; and (c) many very small Nb3Sn grains nucleate from a single Nb grain at the reaction interface. In this paper we report the results of detailed studies of the Nb3Sn/Nb3Sn, Nb3Sn/Nb, and Nb3Sn/ZrO2 interfaces.

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