Improvement of Persistent Magnetic Field Trapping in Bulk Y-Ba-Cu-O Superconductors

In-Gann Chen, Roy Weinstein

Research output: Contribution to journalLetter

4 Citations (Scopus)

Abstract

Far type II superconductors, magnetic field can be trapped due to persistent internal super-current. Quasi-persistent magnetic fields near 2 Tesla at 60 K (and 1.4 T at 77 K) have been measured in mini-magnets made of proton irradiated melt-textured Y-Ba-Cu-0 (MT-Y123) samples. Using this effect, high field permanent magnets with dipole, quadrupole, or more complicated configurations can be made of existing MT-Y123 material, thus bypassing the need for high temperature superconductor (HTS) wires. A phenomenological current model has been developed to account for the trapped field intensity and profile in HTS samples. This model is also a guide to select directions of materials development to further improve field trapping properties. General properties, such as magnetic field intensities, spatial distributions, stabilities, and temperature dependance of trapped field will be discussed.

Original languageEnglish
Pages (from-to)1041-1044
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume3
Issue number1
DOIs
Publication statusPublished - 1993 Jan 1

Fingerprint

YBCO superconductors
high temperature superconductors
Superconducting materials
High temperature superconductors
trapping
Magnetic fields
high field magnets
magnetic fields
permanent magnets
magnetic flux
far fields
spatial distribution
magnets
quadrupoles
wire
dipoles
Spatial distribution
Permanent magnets
Magnets
protons

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

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Improvement of Persistent Magnetic Field Trapping in Bulk Y-Ba-Cu-O Superconductors. / Chen, In-Gann; Weinstein, Roy.

In: IEEE Transactions on Applied Superconductivity, Vol. 3, No. 1, 01.01.1993, p. 1041-1044.

Research output: Contribution to journalLetter

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