Abstract
We have proposed that GdBa2Cu3O7-x bulk material with small holes can easily be magnetized by pulsed-field magnetization. When the fundamental experiment of applying a single pulsed field with various amplitudes was carried out, the total magnetic flux sharply increased in a low applied field, and flux reduction caused by flux flow hardly occurred in a high applied field. In this paper, we investigate the cause of these effects by using trapped field distributions to calculate current densities in the regions with and without holes. The value of the region with holes was about 10% greater, implying that suppression of flux flow created enhancement of the current density by small holes.
| Original language | English |
|---|---|
| Pages (from-to) | 261-264 |
| Number of pages | 4 |
| Journal | Physics Procedia |
| Volume | 45 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
| Externally published | Yes |
| Event | 25th International Symposium on Superconductivity, ISS 2012 - Tokyo, Japan Duration: 2012 Dec 3 → 2012 Dec 5 |
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Keywords
- Flux flow
- Flux penetration
- Pulsed-field magnetization
- Small hole
- Superconducting bulk magnet
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Experimental verification of the magnetic flux penetration property and flux flow inhibition effect of a superconducting bulk magnet with small holes. / Yokoyama, K.; Oka, Tetsuo; Kondo, N.; Hosaka, S.
In: Physics Procedia, Vol. 45, 01.01.2013, p. 261-264.Research output: Contribution to journal › Conference article
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TY - JOUR
T1 - Experimental verification of the magnetic flux penetration property and flux flow inhibition effect of a superconducting bulk magnet with small holes
AU - Yokoyama, K.
AU - Oka, Tetsuo
AU - Kondo, N.
AU - Hosaka, S.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - We have proposed that GdBa2Cu3O7-x bulk material with small holes can easily be magnetized by pulsed-field magnetization. When the fundamental experiment of applying a single pulsed field with various amplitudes was carried out, the total magnetic flux sharply increased in a low applied field, and flux reduction caused by flux flow hardly occurred in a high applied field. In this paper, we investigate the cause of these effects by using trapped field distributions to calculate current densities in the regions with and without holes. The value of the region with holes was about 10% greater, implying that suppression of flux flow created enhancement of the current density by small holes.
AB - We have proposed that GdBa2Cu3O7-x bulk material with small holes can easily be magnetized by pulsed-field magnetization. When the fundamental experiment of applying a single pulsed field with various amplitudes was carried out, the total magnetic flux sharply increased in a low applied field, and flux reduction caused by flux flow hardly occurred in a high applied field. In this paper, we investigate the cause of these effects by using trapped field distributions to calculate current densities in the regions with and without holes. The value of the region with holes was about 10% greater, implying that suppression of flux flow created enhancement of the current density by small holes.
KW - Flux flow
KW - Flux penetration
KW - Pulsed-field magnetization
KW - Small hole
KW - Superconducting bulk magnet
UR - http://www.scopus.com/inward/record.url?scp=84902303793&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902303793&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2013.05.017
DO - 10.1016/j.phpro.2013.05.017
M3 - Conference article
AN - SCOPUS:84902303793
VL - 45
SP - 261
EP - 264
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3884
ER -