Electromagnetic field analysis of an YBCO coated conductor exposed to the non-uniform magnetic field in superconducting cables

2005 ◽  
Vol 432 (3-4) ◽  
pp. 215-222 ◽  
Author(s):  
S. Sato ◽  
N. Amemiya
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Uniform Magnetic Field ◽  
Field Analysis ◽  
Coated Conductor ◽  
Ybco Coated Conductor ◽  
Superconducting Cables

Electromagnetic interaction with the Klein–Gordon equation in the framework of GUP

2021 ◽  
Vol 18 (12) ◽  
Author(s):  
B. Khosropour
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Uncertainty Principle ◽  
Electric Potential ◽  
Uniform Magnetic Field ◽  
Gordon Equation ◽  
Electromagnetic Interaction ◽  
Generalized Uncertainty Principle ◽  
Klein Gordon ◽  
Klein Gordon Equation

In this work, according to the generalized uncertainty principle, we study the Klein–Gordon equation interacting with the electromagnetic field. The generalized Klein–Gordon equation is obtained in the presence of a scalar electric potential and a uniform magnetic field. Furthermore, we find the relation of the generalized energy–momentum in the presence of a scalar electric potential and a uniform magnetic field separately.

CONSTRUCTIVE ASPECTS OF ELECTRODYNAMIC

2016 ◽  
Vol 9 (1) ◽  
pp. 8-10
Author(s):  
Котов ◽  
P. Kotov
Keyword(s):  
Elementary Particle ◽  
Magnetic Field ◽  
Electromagnetic Field ◽  
Uniform Magnetic Field ◽  
Dynamic Models ◽  
Particle Movement ◽  
A Charge

Dynamic models of the accelerated shift of the elementary particle with a charge in the electromagnetic field of measurable intensity are considered and the substantial relations, the distinctive state and solutions of problems in connection with the equations of stable elementary particle movement in a uniform magnetic field of the fixed intensity are offered.

scholarly journals The dynamic resistance of YBCO coated conductor wire: Effect of DC current magnitude and applied field orientation

2021 ◽  
Author(s):  
Zhenan Jiang ◽  
W Zhou ◽  
Q Li ◽  
M Yao ◽  
J Fang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Field ◽  
Threshold Field ◽  
Dynamic Resistance ◽  
Coated Conductor ◽  
Field Orientation ◽  
Ac Magnetic Field ◽  
Ybco Coated Conductor ◽  
Wide Range ◽  
Dc Current

Dynamic resistance, which occurs when a HTS coated conductor carries a DC current under an AC magnetic field, can have critical implications for the design of HTS machines. Here, we report measurements of dynamic resistance in a commercially available SuperPower 4 mm-wide YBCO coated conductor, carrying a DC current under an applied AC magnetic field of arbitrary orientation. The reduced DC current, I t/I c0, ranged from 0.01 to 0.9, where I t is the DC current level and I c0 is the self-field critical current of the conductor. The field angle (the angle between the magnetic field and the normal vector of the conductor wide-face) was varied between 0° and 90° at intervals of 10°. We show that the effective width of the conductor under study is ∼12% less than the physical wire width, and we attribute this difference to edge damage of the wire during or after manufacture. We then examine the measured dynamic resistance of this wire under perpendicular applied fields at very low DC current levels. In this regime we find that the threshold field, B th, of the conductor is well described by the nonlinear equation of Mikitik and Brandt. However, this model consistently underestimates the threshold field at higher current levels. As such, the dynamic resistance in a coated conductor under perpendicular magnetic fields is best described using two different equations for each of the low and high DC current regimes, respectively. At low DC currents where I t/I c0 ≤ 0.1, the nonlinear relationship of Mikitik and Brandt provides the closest agreement with experimental data. However, in the higher current regime where I t/I c0 ≥ 0.2, closer agreement is obtained using a simple linear expression which assumes a current-independent penetration field. We further show that for the conductor studied here, the measured dynamic resistance at different field angles is dominated by the perpendicular magnetic field component, with negligible contribution from the parallel component. Our findings now enable the dynamic resistance of a single conductor to be analytically determined for a very wide range of DC currents and at all applied field angles. This is the Accepted Manuscript version of an article accepted for publication in 'Superconductor Science and Technology'. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6668/aaa49e.

Jc anisotropy for magnetic field angle in YBCO coated conductor on IBAD-MgO buffered metal tapes

2010 ◽  
Vol 470 (20) ◽  
pp. 1384-1387
Author(s):  
H. Suzuki ◽  
Y. Yoshida ◽  
Y. Ichino ◽  
Y. Takai ◽  
S. Awaji ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Coated Conductor ◽  
Ybco Coated Conductor

scholarly journals Voltage-ampere characteristics of YBCO coated conductor under inhomogeneous oscillating magnetic field

2016 ◽  
Vol 108 (26) ◽  
pp. 262601 ◽  
Author(s):  
J. Geng ◽  
B. Shen ◽  
C. Li ◽  
H. Zhang ◽  
K. Matsuda ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Coated Conductor ◽  
Ybco Coated Conductor ◽  
Oscillating Magnetic Field

On the creation of charged massless fermion pair by a photon in an external constant uniform magnetic field in 2+1 dimensions

2020 ◽  
Vol 35 (31) ◽  
pp. 2050204
Author(s):  
V. R. Khalilov
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Elastic Scattering ◽  
Quantum Electrodynamics ◽  
Uniform Magnetic Field ◽  
Scattering Amplitude ◽  
Massless Fermion ◽  
Fermion Pair ◽  
Elastic Scattering Amplitude ◽  
Loop Approximation

Creation of charged massless fermion pair by a photon in a constant uniform magnetic field is considered in the one-loop approximation of the [Formula: see text]-dimensional quantum electrodynamics (QED[Formula: see text]). We calculate the elastic scattering amplitude (EAS) of photon using the polarization operator of photon in the above magnetic field obtained earlier in our work. We analyze the elastic scattering amplitude of photon at various values of the photon energy and magnetic field strength. Very simple analytical formulas for EAS of photon are obtained in the so-called quasi-classical region. In the massive quantum electrodynamics the elastic scattering amplitude of photon defines its “mass” squared in the presence of external electromagnetic field and the imaginary part of EAS describes the total probability of charged massive fermion pair creation in the electromagnetic field; we assume that it is the case and in the massless quantum electrodynamics.

scholarly journals Magnetic field of a ribbon busbar of finite length

2018 ◽  
Vol 19 ◽  
pp. 01010
Author(s):  
Dariusz Kusiak ◽  
Tomasz Szczegielniak ◽  
Zygmunt Piątek
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Finite Length ◽  
Field Analysis ◽  
Analytic Method ◽  
Electrical Parameters ◽  
The Magnetic Field

Using the analytic method based on the Biot-Savart law for the electromagnetic field, the distribution of the magnetic field of a ribbon busbar of finite length has been determined. The Mathematica program was used to visualize the solutions obtained. This allowed quick field analysis after changes of geometrical or electrical parameters of systems under examination.

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