Note: Design and resonant condition measurement of the mushroom-shaped Al test cavity for critical magnetic field evaluation of superconducting thin-film sample

2018 ◽  
Vol 89 (7) ◽  
pp. 076102 ◽  
Author(s):  
Hiroki Oikawa ◽  
Takeshi Higashiguchi ◽  
Hitoshi Hayano
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Field Evaluation ◽  
Critical Magnetic Field ◽  
Thin Film Sample ◽  
Film Sample ◽  
Superconducting Thin Film ◽  
Resonant Condition ◽  
Test Cavity

scholarly journals Moving Pearl Vortices in Thin-Film Superconductors

2021 ◽  
Vol 6 (1) ◽  
pp. 4
Author(s):  
Vladimir Kogan ◽  
Norio Nakagawa
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Time Dependent ◽  
Superconducting Thin Film ◽  
Self Energy ◽  
London Equation ◽  
The Magnetic Field

The magnetic field hz of a moving Pearl vortex in a superconducting thin-film in (x,y) plane is studied with the help of the time-dependent London equation. It is found that for a vortex at the origin moving in +x direction, hz(x,y) is suppressed in front of the vortex, x>0, and enhanced behind (x<0). The distribution asymmetry is proportional to the velocity and to the conductivity of normal quasiparticles. The vortex self-energy and the interaction of two moving vortices are evaluated.

Study of Upper critical magnetic field of (0.8Pr0.2)Ba2Cu3O7-σ thin film

2000 ◽  
Vol 341-348 ◽  
pp. 2047-2048 ◽  
Author(s):  
Chunguang Li ◽  
Hong Li ◽  
Duo Jin ◽  
Yusheng He ◽  
Guangcheng Xiong ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Critical Magnetic Field ◽  
Upper Critical Magnetic Field

Initial Contact Behavior of Nanograined Ni-25at.%Al Film During Nanoindentation

2004 ◽  
Vol 841 ◽  
Author(s):  
Han. Li ◽  
Alfonso H. W. Ngan
Keyword(s):  
Thin Film ◽  
Repeated Loading ◽  
Initial Contact ◽  
Al Alloy ◽  
Alloy Thin Film ◽  
Thin Film Sample ◽  
Film Sample ◽  
Microscopy Imaging ◽  
Contact Stage ◽  
Average Grain Size

ABSTRACTCyclic indentation was performed on standard fused quartz, single crystal Ni3Al (111) and nanocrystalline Ni-25at. %Al alloy thin film with average grain size of a few nanometers. For the thin film sample, it is found the scattering of the effective Young's modulus at small depths goes far beyond the expectation from effects due to surface roughness alone. Three representative deformation mechanisms during initial contact stage were identified to be responsible for the scattering with the assistance of immediate pre and post indentation atomic force microscopy imaging. Furthermore, repeated loading was found to stiffen the thin film sample, but not the bulk ones.

MAGNETORESISTIVITY PROPERTIES AND EFFECTIVE ACTIVATION ENERGY IN YBa2Cu3O7-ρ SUPERCONDUCTING THIN FILM

2006 ◽  
Vol 20 (29) ◽  
pp. 1847-1852
Author(s):  
ALI IHSAN DEMIREL ◽  
SALIM ORAK
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Activation Energy ◽  
Applied Field ◽  
Effective Activation Energy ◽  
Creep Process ◽  
Two Dimensional ◽  
Effective Activation ◽  
Exponential Behavior ◽  
Superconducting Thin Film

The resistive properties and activation energy of YBa 2 Cu 3 O 7-ρ ( YBCO ) superconducting materials change in magnetic field. It is explained that magnetoresistive behavior in terms of the presence of two-dimensional vortices being pinned effectively when they are perpendicular to the CuO 2 planes and an exponential behavior of the activation energy versus the applied field was obtained. The resulting activation energies ranging from 1 to 5 Tesla were attributed to inter-granular flux creep process.

Silver Film Atomic Oxygen Sensors

1972 ◽  
Vol 50 (14) ◽  
pp. 1676-1681 ◽  
Author(s):  
Ronald J. Thomas ◽  
Doran J. Baker
Keyword(s):  
Thin Film ◽  
Atomic Oxygen ◽  
Silver Film ◽  
Surface Recombination ◽  
Oxide Thickness ◽  
Oxygen Sensors ◽  
Recombination Coefficient ◽  
Thin Film Sample ◽  
Film Sample ◽  
Initial Oxidation

Measurements indicate that the initial oxidation rate of a thin film of silver is linearly proportional to the atomic oxygen flux; however, the oxidation coefficient is dependent upon the technique for depositing and chemically reducing the thin film. A model is developed relating the conductance of a thin-film sample to its oxidation. The measurements and the model indicate that the silver film is very promising as a sensor of upper atmospheric atomic oxygen. The model also indicates that the surface recombination coefficient of atomic oxygen depends on the oxide thickness as well as the flux.

scholarly journals Thermally Activated Dissipation and Upper Critical Magnetic Field under the Strong Electrostatic Field in the BiPbSrCaCuO Thin Film

1996 ◽  
Vol 06 (C3) ◽  
pp. C3-271-C3-276
Author(s):  
V. S. Lysenko ◽  
Y. V. Gomeniuk ◽  
I. P. Tyagulski ◽  
I. N. Osiyuk ◽  
V. Z. Lozovski ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Electrostatic Field ◽  
Critical Magnetic Field ◽  
Thermally Activated ◽  
Upper Critical Magnetic Field
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