Pulsed field magnetization for GdBaCuO bulk with stronger pinning characteristics

Hiroyuki Fujishiro, Takuya Hiyama, Takashi Miura, Tomoyuki Naito, Shinya Nariki, Naomichi Sakai, Izumi Hirabayashi

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The GdBaCuO superconducting bulk with stronger pinning characteristics (BT = 1.8 T at 77 K by the field cooled magnetization (FCM)) has been magnetized at Ts = 70 - 20 K by the pulsed field magnetization (PFM) techniques; a sequential pulsed-field application (SPA) and a modified multi pulse technique with stepwise cooling (MMPSC). With decreasing Ts, the pinning force Fp increases especially at the growth sector boundaries (GSBs), and then the nonuniformity of the trapped field profile becomes more and more conspicuous on the bulk surface. At low Ts, the SPA technique is not necessarily a suitable technique to enhance the trapped field B T and the total trapped flux φT However, these values can be enhanced by the MMPSC method. The properties of the bulk with stronger pinning characteristics during PFM are discussed.

Original languageEnglish
Article number5067107
Pages (from-to)3545-3548
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - 2009 Jun

Keywords

  • MMPSC method
  • Pinning force
  • Pulsed field magnetization
  • Trapped field

ASJC Scopus subject areas

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

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    Fujishiro, H., Hiyama, T., Miura, T., Naito, T., Nariki, S., Sakai, N., & Hirabayashi, I. (2009). Pulsed field magnetization for GdBaCuO bulk with stronger pinning characteristics. IEEE Transactions on Applied Superconductivity, 19(3), 3545-3548. [5067107]. https://doi.org/10.1109/TASC.2009.2018081