Vortex Lattice Structure in Superconducting Films with Periodic Pinning Arrays

2003 ◽  
Vol 17 (10n12) ◽  
pp. 579-587
Author(s):  
W. V. Pogosov ◽  
A. L. Rakhmanov ◽  
V. V. Moshchalkov
Keyword(s):  
Vortex Lattice ◽  
Intermediate Phase ◽  
Lattice Structure ◽  
Flux Line ◽  
Superconducting Films ◽  
Superconducting Film ◽  
Line Lattice ◽  
Vortex Phases ◽  
Pinning Arrays ◽  
London Model

The structure of the flux-line lattice in the superconducting film with the periodic system of artificial pinning sites is studied theoretically using the London model. The existence of different vortex phases (pinned square phase, depinned deformed triangular phase, and "intermediate" phase) is revealed. The phase diagrams of the vortex lattice are obtained.

Destruction of Scalino Law for Flux Pinning in Layered Structures

1992 ◽  
Vol 275 ◽  
Author(s):  
A. N. Lykov ◽  
V. I. Zdravkov
Keyword(s):  
Flux Pinning ◽  
Magnetic Field Dependence ◽  
Vortex Lattice ◽  
Flux Line ◽  
Upper Critical Field ◽  
Qualitative Change ◽  
Pinning Force ◽  
Line Lattice ◽  
Large Period ◽  
The Magnetic Field

ABSTRACTThe multilayers based on Nb/NbO (S-I-S) were investigated in external magnetic fields at various temperatures. It was found that the shear deformation of the solid vortex lattice de-termenes critical current density in the case of large period structures and high parallel fields. The solid vortex lattice can be destroyed by decreasing of both the period and the upper critical field. The qualitative change of the magnetic field dependence of the volume pinning force was observed as temperature was increasing. It reveals structural transitioon from elasti-cally deformed flux line lattice to plastically deformed one. Thus the scaling low is destructed for these structures. We have determened the volume pinning force by direct summing of elementary pinning forces in oxide layers in this case.

On the Calculation of the Phase Shift of a Superconducting Flux Line Lattice

2000 ◽  
Vol 6 (S2) ◽  
pp. 1032-1033
Author(s):  
M. Beleggia ◽  
G. Pozzi ◽  
A. Tonomura
Keyword(s):  
Magnetic Field ◽  
Electron Beam ◽  
Phase Shift ◽  
Flux Line ◽  
Realistic Model ◽  
Regular Lattice ◽  
Transmission Experiment ◽  
Line Lattice ◽  
Flux Tubes ◽  
London Model

Recently out-of-focus, low angle electron diffraction and Foucault experiments have been carried out on superconducting specimens in a range of applied magnetic fields where the fluxons form a more or less regular lattice. Let us recall that in order to describe the effect on the electron beam in a transmission experiment of a fluxon in a tilted specimen, the fluxon itself has been approximated by a suitable bundle of straight flux tubes, relying on the important result that the phase shift of the flux tube can be calculated analytically even in the tilted specimen geometry. In this way, it is only necessary to convolute this phase shift with the chosen projected magnetic field distribution (in our case a London model with a phenomenological penetration depth of 50 nm) in order to obtain a fairly realistic model. Therefore, in order to interpret the main features of the experimental results,

scholarly journals Matching and surface barrier effects of the flux-line lattice in superconducting films and multilayers

1996 ◽  
Vol 53 (13) ◽  
pp. 8658-8670 ◽  
Author(s):  
M. Ziese ◽  
P. Esquinazi ◽  
P. Wagner ◽  
H. Adrian ◽  
S. H. Brongersma ◽  
...  
Keyword(s):  
Flux Line ◽  
Superconducting Films ◽  
Surface Barrier ◽  
Line Lattice ◽  
Flux Line Lattice ◽  
Barrier Effects

H-T Phase Diagram of Flux Line Lattice Structure in YNi2B2C

2006 ◽  
Author(s):  
N. Sakiyama ◽  
H. Tsukagoshi ◽  
F. Yano ◽  
T. Nagata ◽  
H. Kawano-Furukawa ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Lattice Structure ◽  
Flux Line ◽  
Line Lattice ◽  
Flux Line Lattice ◽  
T Phase

Confinement of the flux-line lattice in nanostructured superconducting films and multilayers

1996 ◽  
Author(s):  
Yvon Bruynseraede ◽  
Vitaly V. Metlushko ◽  
K. Temst ◽  
M. Baert ◽  
E. Rosseel ◽  
...  
Keyword(s):  
Flux Line ◽  
Superconducting Films ◽  
Line Lattice ◽  
Flux Line Lattice
Sign in / Sign up

Export Citation Format

Share Document