Trapped field and related properties in a superconducting disk magnetized by pulse field

C Y He; Y Hou; L Liu; Z X Gao

Trapped field and related properties in a superconducting disk magnetized by pulse field

Superconductivity 2007-05-23 v1 Materials Science

Authors: C Y He , Y Hou , L Liu , Z X Gao

Abstract

The distributions of the magnetic field and temperature in a superconducting-disk magnetized by pulse field, and the levitation force between this disk and a permanent magnet are calculated from first principles. The calculation is based upon the current motion and the heat diffusion equations in the disk. The critical current density as a function of magnetic field and temperature is taken into account. The dissipation power in the superconducting or the normal state region is distinguished. The trapped field may reach 17 T at 29 K by pulsed field magnetization. The effects of the amplitude of the current pulse on the distributions of magnetic field in the disk and on the levitation force are discussed.

Keywords

superconducting disk pulse field trapped field levitation force critical current density

Cite

@article{arxiv.cond-mat/0311490,
  title  = {Trapped field and related properties in a superconducting disk magnetized by pulse field},
  author = {C Y He and Y Hou and L Liu and Z X Gao},
  journal= {arXiv preprint arXiv:cond-mat/0311490},
  year   = {2007}
}

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14 pages, 5 figures

Trapped field and related properties in a superconducting disk magnetized by pulse field

Abstract

Keywords

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