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Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions

Publication ,  Journal Article
Askew, TR; O'Daniel, JC; Weber, JM; Cha, YS
Published in: IEEE Transactions on Applied Superconductivity
June 1, 2005

A step-function increase in magnetic field has been applied to various single-domain Y-Ba-Cu-O rings and disks at 77 K. The magnetic field in the center of these structures exhibits an exponential approach to an equilibrium value, as predicted by simple diffusion theory. The measured time constants are in the millisecond range and show nonlinear behavior, as predicted in recently advanced theories of magnetic diffusion under flux flow conditions. Measurements of trapped magnetic field, critical current density, and current-voltage (I-V) characteristics are compared to results obtained by measurement of magnetic diffusion. The single-domain structures are intended for use in penetration-type fault current limiters, an application where the magnetic diffusion time constants have a strong influence on device design. © 2005 IEEE.

Duke Scholars

Published In

IEEE Transactions on Applied Superconductivity

DOI

ISSN

1051-8223

Publication Date

June 1, 2005

Volume

15

Issue

2 PART III

Start / End Page

3758 / 3761

Related Subject Headings

  • General Physics
  • 5104 Condensed matter physics
  • 4008 Electrical engineering
  • 0912 Materials Engineering
  • 0906 Electrical and Electronic Engineering
  • 0204 Condensed Matter Physics
 

Citation

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ICMJE
MLA
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Askew, T. R., O’Daniel, J. C., Weber, J. M., & Cha, Y. S. (2005). Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions. IEEE Transactions on Applied Superconductivity, 15(2 PART III), 3758–3761. https://doi.org/10.1109/TASC.2005.849424
Askew, T. R., J. C. O’Daniel, J. M. Weber, and Y. S. Cha. “Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions.” IEEE Transactions on Applied Superconductivity 15, no. 2 PART III (June 1, 2005): 3758–61. https://doi.org/10.1109/TASC.2005.849424.
Askew TR, O’Daniel JC, Weber JM, Cha YS. Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions. IEEE Transactions on Applied Superconductivity. 2005 Jun 1;15(2 PART III):3758–61.
Askew, T. R., et al. “Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions.” IEEE Transactions on Applied Superconductivity, vol. 15, no. 2 PART III, June 2005, pp. 3758–61. Scopus, doi:10.1109/TASC.2005.849424.
Askew TR, O’Daniel JC, Weber JM, Cha YS. Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions. IEEE Transactions on Applied Superconductivity. 2005 Jun 1;15(2 PART III):3758–3761.

Published In

IEEE Transactions on Applied Superconductivity

DOI

ISSN

1051-8223

Publication Date

June 1, 2005

Volume

15

Issue

2 PART III

Start / End Page

3758 / 3761

Related Subject Headings

  • General Physics
  • 5104 Condensed matter physics
  • 4008 Electrical engineering
  • 0912 Materials Engineering
  • 0906 Electrical and Electronic Engineering
  • 0204 Condensed Matter Physics