Magnetic field dependence of flux pinning force in a highTcBi1.6Pb0.4Sr2Ca2Cu3Oysuperconductor

1993 ◽  
Vol 63 (17) ◽  
pp. 2423-2425 ◽  
Author(s):  
Mun‐Seog Kim ◽  
Seong‐Cho Yu ◽  
Suhk‐Kun Oh
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Flux Pinning ◽  
Magnetic Field Dependence ◽  
Pinning Force ◽  
Flux Pinning Force

scholarly journals Effective Magnetic Field Dependence of the Flux Pinning Energy in FeSe0.5Te0.5 Superconductor

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5289
Author(s):  
Masood Rauf Khan ◽  
Antonio Leo ◽  
Angela Nigro ◽  
Armando Galluzzi ◽  
Massimiliano Polichetti ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Applied Field ◽  
Flux Pinning ◽  
Magnetic Field Dependence ◽  
Effective Magnetic Field ◽  
Layered Superconductor ◽  
Extended Defects ◽  
Pinning Energy ◽  
Flux Pinning Energy

The role of a layered structure in superconducting pinning properties is still at a debate. The effects of the vortex shape, which can assume for example a staircase form, could influence the interplay with extrinsic pinning coming from the specific defects of the material, thus inducing an effective magnetic field dependence. To enlighten this role, we analysed the angular dependence of flux pinning energy U(H,θ) as a function of magnetic field in FeSe0.5Te0.5 thin film by considering the field components along the ab-plane of the crystal structure and the c-axis direction. U(H,θ) has been evaluated from magneto-resistivity measurements acquired at different orientations between the applied field up to 16 T and FeSe0.5Te0.5 thin films grown on a CaF2 substrate. We observed that the U(H,θ) shows an anisotropic trend as a function of both the intensity and the direction of the applied field. Such a behaviour can be correlated to the presence of extended defects elongated in the ab-planes, thus mimicking a layered superconductor, as we observed in the microstructure of the compound. The comparison of FeSe0.5Te0.5 with other superconducting materials provides a more general understanding on the flux pinning energy in layered superconductors.

Magnetic field dependence of the critical current and the flux pinning mechanism inYBa2Cu3O6+xfilms doped withBaZrO3

2006 ◽  
Vol 73 (22) ◽  
Author(s):  
K. Traito ◽  
M. Peurla ◽  
H. Huhtinen ◽  
Yu. P. Stepanov ◽  
M. Safonchik ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Critical Current ◽  
Field Dependence ◽  
Flux Pinning ◽  
Magnetic Field Dependence ◽  
Pinning Mechanism

TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF THE ELASTIC CONSTANTS IN Nd3Se4

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-461-C8-462 ◽  
Author(s):  
H. Fütterer ◽  
T. Yohannes ◽  
H. Bach ◽  
J. Pelzl ◽  
K. Nahm ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Elastic Constants ◽  
Magnetic Field Dependence

Magnetic field dependence of the critical current anisotropy in normal metal‐YBa2Cu3O7−δthin‐film bilayers

1991 ◽  
Vol 58 (11) ◽  
pp. 1205-1207 ◽  
Author(s):  
R. H. Ono ◽  
L. F. Goodrich ◽  
J. A. Beall ◽  
M. E. Johansson ◽  
C. D. Reintsema
Keyword(s):  
Magnetic Field ◽  
Critical Current ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Normal Metal

scholarly journals On the pinning force in high density MgB2 samples

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
V. Sandu ◽  
A. M. Ionescu ◽  
G. Aldica ◽  
M. A. Grigoroscuta ◽  
M. Burdusel ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Scaling Law ◽  
Critical Force ◽  
High Density ◽  
Pinning Force ◽  
Pinning Mechanism ◽  
Grain Boundary Pinning ◽  
Peaked Function ◽  
Main Factor

AbstractAn analysis of the field dependence of the pinning force in different, high density sintered samples of MgB2 is presented. The samples were chosen to be representative for pure MgB2, MgB2 with additives, and partially oriented massive samples. In some cases, the curves of pinning force versus magnetic field of the selected samples present peculiar profiles and application of the typical scaling procedures fails. Based on the percolation model, we show that most features of the field dependence of the critical force that generate dissipation comply with the Dew-Hughes scaling law predictions within the grain boundary pinning mechanism if a connecting factor related to the superconducting connection of the grains is used. The field dependence of the connecting function, which is dependent on the superconducting anisotropy, is the main factor that controls the boundary between dissipative and non-dissipative current transport in high magnetic field. Experimental data indicate that the connecting function is also dependent on the particular properties (e.g., the presence of slightly non-stoichiometric phases, defects, homogeneity, and others) of each sample and it has the form of a single or double peaked function in all investigated samples.

scholarly journals Magnetic field dependence of the neutral pion mass in the linear sigma model with quarks: The strong field case

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Alejandro Ayala ◽  
José Luis Hernández ◽  
L. A. Hernández ◽  
Ricardo L. S. Farias ◽  
R. Zamora
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Sigma Model ◽  
Neutral Pion ◽  
Strong Field ◽  
Pion Mass ◽  
Linear Sigma Model ◽  
Field Case
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