Abstract
We have studied the levitation force of a Gd-Ba-Cu-O bulk superconductor 60 mm in diameter and 20 mm in thickness with a newly developed superconducting magnet system that can provide high field gradient. The magnet system was composed of two superconducting coils that are co-axially placed, and currents are passed in the opposite direction. To study the effect of radial and vertical magnetic field components on the levitation force and its time relaxation, the superconductor was placed at several locations. It was confirmed that the levitation force is strongly dependent on the radial component of magnetic fields. It was also found that the time relaxation was reduced without sacrificing the levitation force by increasing the radial component of the external field.
| Original language | English |
|---|---|
| Pages (from-to) | 1461-1464 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 468 |
| Issue number | 15-20 |
| DOIs | |
| Publication status | Published - 2008 Sep 15 |
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Keywords
- Bulk
- Flux creep
- Gd-Ba-Cu-O
- Levitation force
- Relaxation
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system. / Suzuki, T.; Araki, S.; Koibuchi, K.; Ogawa, K.; Sawa, K.; Takeuchi, K.; Murakami, Masato; Nagashima, K.; Seino, H.; Miyazaki, Y.; Sakai, Naomichi; Hirabayashi, I.; Iwasa, Y.
In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1461-1464.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system
AU - Suzuki, T.
AU - Araki, S.
AU - Koibuchi, K.
AU - Ogawa, K.
AU - Sawa, K.
AU - Takeuchi, K.
AU - Murakami, Masato
AU - Nagashima, K.
AU - Seino, H.
AU - Miyazaki, Y.
AU - Sakai, Naomichi
AU - Hirabayashi, I.
AU - Iwasa, Y.
PY - 2008/9/15
Y1 - 2008/9/15
N2 - We have studied the levitation force of a Gd-Ba-Cu-O bulk superconductor 60 mm in diameter and 20 mm in thickness with a newly developed superconducting magnet system that can provide high field gradient. The magnet system was composed of two superconducting coils that are co-axially placed, and currents are passed in the opposite direction. To study the effect of radial and vertical magnetic field components on the levitation force and its time relaxation, the superconductor was placed at several locations. It was confirmed that the levitation force is strongly dependent on the radial component of magnetic fields. It was also found that the time relaxation was reduced without sacrificing the levitation force by increasing the radial component of the external field.
AB - We have studied the levitation force of a Gd-Ba-Cu-O bulk superconductor 60 mm in diameter and 20 mm in thickness with a newly developed superconducting magnet system that can provide high field gradient. The magnet system was composed of two superconducting coils that are co-axially placed, and currents are passed in the opposite direction. To study the effect of radial and vertical magnetic field components on the levitation force and its time relaxation, the superconductor was placed at several locations. It was confirmed that the levitation force is strongly dependent on the radial component of magnetic fields. It was also found that the time relaxation was reduced without sacrificing the levitation force by increasing the radial component of the external field.
KW - Bulk
KW - Flux creep
KW - Gd-Ba-Cu-O
KW - Levitation force
KW - Relaxation
UR - http://www.scopus.com/inward/record.url?scp=50349098503&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50349098503&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2008.05.140
DO - 10.1016/j.physc.2008.05.140
M3 - Article
AN - SCOPUS:50349098503
VL - 468
SP - 1461
EP - 1464
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 15-20
ER -