Temperature rise and trapped field in a GdBaCuO bulk superconductor cooled down to 10 K after applying pulsed magnetic field

K. Yokoyama, M. Kaneyama, H. Fujishiro, Tetsuo Oka, K. Noto

Research output: Contribution to journalConference article

10 Citations (Scopus)

Abstract

In order to magnetize the bulk superconductors more strongly by pulsed-field magnetization (PFM), the temperature rise ΔT(t) and the trapped field BT of the GdBaCuO bulk cooled down to 10 K have been investigated after applying the five successive (No1-No5) pulsed-field ranging from 4.70 T to 6.04 T. ΔT increased linearly with lowering initial bulk temperature Ts and with increasing strength of the applied field Bex. From the generated heat (Q) estimation, the difference Q value, ΔQ = Q(No1) - Q(No5) which suggests that the ΔQ nearly stands for the flux pinning loss Qp shows the similar Bex dependence to the BT value.

Original languageEnglish
Pages (from-to)671-675
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 2005 Oct 1
Externally publishedYes
EventProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
Duration: 2004 Nov 232004 Nov 25

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Superconducting materials
Magnetic fields
Flux pinning
flux pinning
magnetic fields
Magnetization
heat
Temperature
magnetization
temperature
Hot Temperature

Keywords

  • GdBaCuO bulk superconductor
  • Heat generation
  • Pulsed-field magnetization
  • Temperature measurement

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Temperature rise and trapped field in a GdBaCuO bulk superconductor cooled down to 10 K after applying pulsed magnetic field. / Yokoyama, K.; Kaneyama, M.; Fujishiro, H.; Oka, Tetsuo; Noto, K.

In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 671-675.

Research output: Contribution to journalConference article

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AU - Oka, Tetsuo

AU - Noto, K.

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N2 - In order to magnetize the bulk superconductors more strongly by pulsed-field magnetization (PFM), the temperature rise ΔT(t) and the trapped field BT of the GdBaCuO bulk cooled down to 10 K have been investigated after applying the five successive (No1-No5) pulsed-field ranging from 4.70 T to 6.04 T. ΔT increased linearly with lowering initial bulk temperature Ts and with increasing strength of the applied field Bex. From the generated heat (Q) estimation, the difference Q value, ΔQ = Q(No1) - Q(No5) which suggests that the ΔQ nearly stands for the flux pinning loss Qp shows the similar Bex dependence to the BT value.

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