Pulsed-field magnetization properties of bulk superconductors by employment of vortex-type coils

被引：7

作者：

Deng, Z. ^{[1
]}

Shinohara, N. ^{[1
]}

Miki, M. ^{[1
]}

Felder, B. ^{[1
]}

Tsuzuki, K. ^{[1
]}

Watasaki, M. ^{[1
]}

Kawabe, S. ^{[1
]}

Taguchi, R. ^{[1
]}

Izumi, M. ^{[1
]}

机构：

[1] Tokyo Univ Marine Sci & Technol, Appl Phys Lab, Tokyo 1358533, Japan

来源：

SUPERCONDUCTIVITY CENTENNIAL CONFERENCE 2011 | 2012年 / 36卷

关键词：

Bulk high-temperature superconductors; Flux penetration patterns; Pulsed-field magnetization; Pulsed-coil types; MAGNETS;

D O I：

10.1016/j.phpro.2012.06.088

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

070201 [理论物理]; 070202 [粒子物理与原子核物理];

摘要：

Vortex-type magnetizing coils are gaining more and more attention to activate bulk superconductors in pulsed-field magnetization (PFM) studies, compared with solenoid-type ones. Following existing reports, we present experimental results of the different penetration patterns of magnetic flux between the two kinds of coils. It was found that the magnetic flux will primarily penetrate inside the bulk from the upper and lower surfaces by using vortex coils, rather than from the periphery in the case of solenoid coils. Moreover, the bulk submitted to a small pulsed-field excitation exhibits a similar field profile as the excitation field (convex or concave shape); a phenomenon named field memory effect. The use of vortex-or solenoid-type coils in PFM will pose an influence on the initial flux penetration patterns during the flux trapping processes, but both coils can finally excite the best conical trapped field shape of the bulk. (C) 2012 Published by Elsevier B. V. Selection and/or peer-review under responsibility of the Guest Editors.

引用

页码：958 / 962

页数：5

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