Measurements of trapped-flux density for bulk high-temperature superconductors

M. Murakami

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Large grain bulk superconductors with large critical current density can trap large fields and thus have potential for various engineering applications. For the design of the devices utilizing the bulk superconductors, one needs to know the maximum trapped-flux density. There are several parameters to affect the trapped-field values. The trapped-fields decay with time due to flux flow and flux creep, and therefore, some waiting time is necessary to determine the value, which can be used for the design of industrial machines. For comparative study, one needs to apply large enough fields to ensure the saturation of field-trapping capability. Furthermore, one needs to specify the sample geometry and the correct gap distance between the sample and the magnetic sensor.

Original languageEnglish
Pages (from-to)751-754
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberSUPPL. 2
Publication statusPublished - 2001 Aug 1
Externally publishedYes


  • Bulk superconductors
  • Flux pinning
  • Magnet
  • Standardization
  • Trapped-field measurement
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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