Importance of initial "M-shaped" trapped field profile in a two-stage pulse field magnetization (MMPSC) method

H. Fujishiro; T. Hiyama; T. Tateiwa; Y. Yanagi; T. Oka

doi:10.1016/j.physc.2007.03.440

Importance of initial "M-shaped" trapped field profile in a two-stage pulse field magnetization (MMPSC) method

H. Fujishiro, T. Hiyama, T. Tateiwa, Y. Yanagi, T. Oka

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

The influence of a shape of a trapped field distribution at a first stage on the final trapped field B_T at a second stage has been investigated in the two-stage pulse field magnetization technique named as a modified multi-pulse technique with stepwise cooling (MMPSC). The final trapped field B_T strongly depends on the shape and the strength of the trapped field at the first stage. The "M-shaped" profile with a moderate number of magnetic fluxes at the first stage maximizes the final B_T. The optimization of the applied field B2 and the lowering of the operating temperature T2 at the second stage are also effective to enhance B_T. The flux intrusion and the flux trap are effectively promoted at low temperatures by the existence of already trapped fluxes during the first stage.

Original language	English
Pages (from-to)	394-397
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.03.440
Publication status	Published - 2007 Oct 1
Externally published	Yes

Keywords

Bulk superconductor
MMPSC method
Pulse field magnetization
Trapped field profile

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2007.03.440

Cite this

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abstract = "The influence of a shape of a trapped field distribution at a first stage on the final trapped field BT at a second stage has been investigated in the two-stage pulse field magnetization technique named as a modified multi-pulse technique with stepwise cooling (MMPSC). The final trapped field BT strongly depends on the shape and the strength of the trapped field at the first stage. The {"}M-shaped{"} profile with a moderate number of magnetic fluxes at the first stage maximizes the final BT. The optimization of the applied field B2 and the lowering of the operating temperature T2 at the second stage are also effective to enhance BT. The flux intrusion and the flux trap are effectively promoted at low temperatures by the existence of already trapped fluxes during the first stage.",

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T1 - Importance of initial "M-shaped" trapped field profile in a two-stage pulse field magnetization (MMPSC) method

AU - Fujishiro, H.

AU - Hiyama, T.

AU - Tateiwa, T.

AU - Yanagi, Y.

AU - Oka, T.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - The influence of a shape of a trapped field distribution at a first stage on the final trapped field BT at a second stage has been investigated in the two-stage pulse field magnetization technique named as a modified multi-pulse technique with stepwise cooling (MMPSC). The final trapped field BT strongly depends on the shape and the strength of the trapped field at the first stage. The "M-shaped" profile with a moderate number of magnetic fluxes at the first stage maximizes the final BT. The optimization of the applied field B2 and the lowering of the operating temperature T2 at the second stage are also effective to enhance BT. The flux intrusion and the flux trap are effectively promoted at low temperatures by the existence of already trapped fluxes during the first stage.

AB - The influence of a shape of a trapped field distribution at a first stage on the final trapped field BT at a second stage has been investigated in the two-stage pulse field magnetization technique named as a modified multi-pulse technique with stepwise cooling (MMPSC). The final trapped field BT strongly depends on the shape and the strength of the trapped field at the first stage. The "M-shaped" profile with a moderate number of magnetic fluxes at the first stage maximizes the final BT. The optimization of the applied field B2 and the lowering of the operating temperature T2 at the second stage are also effective to enhance BT. The flux intrusion and the flux trap are effectively promoted at low temperatures by the existence of already trapped fluxes during the first stage.

KW - Bulk superconductor

KW - MMPSC method

KW - Pulse field magnetization

KW - Trapped field profile

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Importance of initial "M-shaped" trapped field profile in a two-stage pulse field magnetization (MMPSC) method

Abstract

Keywords

ASJC Scopus subject areas

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