scholarly journals Motion of Magnetic Flux Quanta in Type-II Superconductors – Some Open Questions

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
R. P. Huebener
Keyword(s):  
Magnetic Flux ◽  
Mixed State ◽  
Particle Density ◽  
Dominant Role ◽  
Volume Ratio ◽  
Superconducting Films ◽  
Type Ii ◽  
Electric Transport ◽  
Thin Superconducting Films ◽  
Non Equilibrium

AbstractThe motion of the magnetic flux quanta in the mixed state of a type-II superconductor, due to the Lorentz force of an electric transport current, represents the key mechanism for generating resistive losses. Whereas the most common result is Joule heating of the superconductor, also purely electronic non-equilibrium effects can play a dominant role in the case of effective cooling of the sample. The latter situation can be realized by means of very thin superconducting films (having a large surface/ volume ratio). In this paper we discuss experiments with Nd2−xCexCuOy (NCCO) films performed some time ago, yielding evidence for electronic non-equilibrium effects due to the energy dependence of the quasi-particle density of states in the mixed state of the films. The films were imbedded within super-fluid helium for cooling. The recent advances in the fabrication of epitaxial ultra-thin superconducting films promise to contribute to further clarification of these electronic non-equilibrium effects.

The Mixed State of Thin Superconducting Films in Perpendicular Fields

1967 ◽  
Vol 159 (2) ◽  
pp. 330-343 ◽  
Author(s):  
Alexander L. Fetter ◽  
P. C. Hohenberg
Keyword(s):  
Mixed State ◽  
Superconducting Films ◽  
Thin Superconducting Films

scholarly journals Ultrafast magnetic flux dendrite propagation into thin superconducting films

2005 ◽  
Vol 72 (2) ◽  
Author(s):  
B. Biehler ◽  
B.-U. Runge ◽  
P. Leiderer ◽  
R. G. Mints
Keyword(s):  
Magnetic Flux ◽  
Superconducting Films ◽  
Thin Superconducting Films

scholarly journals Angular Dependence of Linear Microwave Response of Thin Superconducting Films of Yttrium–Barium Cuprate in Mixed State

2020 ◽  
Vol 42 (8) ◽  
pp. 1043-1054
Author(s):  
A. A. Kalenyuk ◽  
◽  
S. I. Futimsky ◽  
V. S. Flis ◽  
V. O. Moskaliuk ◽  
...  
Keyword(s):  
Angular Dependence ◽  
Mixed State ◽  
Superconducting Films ◽  
Microwave Response ◽  
Yttrium Barium Cuprate ◽  
Yttrium Barium ◽  
Thin Superconducting Films

Characterization of Y-Ba-Cu-O films grown on silicon substrates by sequential evaporation

1988 ◽  
Vol 46 ◽  
pp. 866-867
Author(s):  
E. L. Hall ◽  
A. Mogro-Campero ◽  
L. G. Turner ◽  
N. Lewis
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Superconducting Films ◽  
Electron Beam Evaporation ◽  
Film Deposition ◽  
Silicon Substrates ◽  
Superconducting Properties ◽  
Sequential Electron ◽  
Thin Superconducting Films

There is great interest in the growth of thin superconducting films of YBa2Cu3Ox on silicon, since this is a necessary first step in the use of this superconductor in a variety of possible electronic applications including interconnects and hybrid semiconductor/superconductor devices. However, initial experiments in this area showed that drastic interdiffusion of Si into the superconductor occurred during annealing if the Y-Ba-Cu-O was deposited direcdy on Si or SiO2, and this interdiffusion destroyed the superconducting properties. This paper describes the results of the use of a zirconia buffer layer as a diffusion barrier in the growth of thin YBa2Cu3Ox films on Si. A more complete description of the growth and characterization of these films will be published elsewhere.Thin film deposition was carried out by sequential electron beam evaporation in vacuum onto clean or oxidized single crystal Si wafers. The first layer evaporated was 0.4 μm of zirconia.

Boundary Conditions and Quantum Effects in Thin Superconducting Films

1965 ◽  
Vol 140 (6A) ◽  
pp. A1965-A1967 ◽  
Author(s):  
Arthur Paskin ◽  
A. D. Singh
Keyword(s):  
Boundary Conditions ◽  
Quantum Effects ◽  
Superconducting Films ◽  
Thin Superconducting Films
Sign in / Sign up

Export Citation Format

Share Document