Abstract
We report a new pulse field magnetizing (PFM) method using the modified multi pulse technique combined with a stepwise cooling (MMPSC) to obtain the trapped field BT P over 4 T on a bulk superconductor. The BT P value as high as 4.47 T has been attained on the surface of the GdBaCuO bulk, which is the present highest using PFM. The key points to obtain the higher BT P are the introduction of a small amount magnetic flux (BT P∼1 T) into the bulk with the M-shaped trapped field distribution at a higher starting temperature Ts∼45 K, and the following application of the optimum stronger pulse fields of Bex∼6.7 T at a lower Ts∼30 K. The reduction in the temperature rise ΔT due to the already existing trapped flux is a very important issue.
| Original language | English |
|---|---|
| Article number | 101 |
| Pages (from-to) | 405-408 |
| Number of pages | 4 |
| Journal | Journal of Physics: Conference Series |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Jun 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Trapped field over 4 tesla on GdBaCuO bulk by pulse field method and magnetizing mechanism. / Fujishiro, Hiroyuki; Kaneyama, Masahiko; Tateiwa, Tatsuya; Oka, Tetsuo.
In: Journal of Physics: Conference Series, Vol. 43, No. 1, 101, 01.06.2006, p. 405-408.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Trapped field over 4 tesla on GdBaCuO bulk by pulse field method and magnetizing mechanism
AU - Fujishiro, Hiroyuki
AU - Kaneyama, Masahiko
AU - Tateiwa, Tatsuya
AU - Oka, Tetsuo
PY - 2006/6/1
Y1 - 2006/6/1
N2 - We report a new pulse field magnetizing (PFM) method using the modified multi pulse technique combined with a stepwise cooling (MMPSC) to obtain the trapped field BT P over 4 T on a bulk superconductor. The BT P value as high as 4.47 T has been attained on the surface of the GdBaCuO bulk, which is the present highest using PFM. The key points to obtain the higher BT P are the introduction of a small amount magnetic flux (BT P∼1 T) into the bulk with the M-shaped trapped field distribution at a higher starting temperature Ts∼45 K, and the following application of the optimum stronger pulse fields of Bex∼6.7 T at a lower Ts∼30 K. The reduction in the temperature rise ΔT due to the already existing trapped flux is a very important issue.
AB - We report a new pulse field magnetizing (PFM) method using the modified multi pulse technique combined with a stepwise cooling (MMPSC) to obtain the trapped field BT P over 4 T on a bulk superconductor. The BT P value as high as 4.47 T has been attained on the surface of the GdBaCuO bulk, which is the present highest using PFM. The key points to obtain the higher BT P are the introduction of a small amount magnetic flux (BT P∼1 T) into the bulk with the M-shaped trapped field distribution at a higher starting temperature Ts∼45 K, and the following application of the optimum stronger pulse fields of Bex∼6.7 T at a lower Ts∼30 K. The reduction in the temperature rise ΔT due to the already existing trapped flux is a very important issue.
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U2 - 10.1088/1742-6596/43/1/101
DO - 10.1088/1742-6596/43/1/101
M3 - Article
VL - 43
SP - 405
EP - 408
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 101
ER -