Pulsed-field magnetization of a bulk superconductor with small holes

K. Yokoyama; T. Oka; N. Kondo; S. Hosaka

doi:10.1016/j.physc.2012.03.074

Pulsed-field magnetization of a bulk superconductor with small holes

K. Yokoyama, T. Oka, N. Kondo, S. Hosaka

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

8 Citations (Scopus)

Abstract

Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa₂Cu₃O_7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.

Original language	English
Pages (from-to)	343-347
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	484
DOIs	https://doi.org/10.1016/j.physc.2012.03.074
Publication status	Published - 2013 Jan 15
Externally published	Yes

Keywords

Flux flow
Flux penetration
Pulsed-field magnetization
Small hole
Superconducting bulk magnet

ASJC Scopus subject areas

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

Access to Document

10.1016/j.physc.2012.03.074

Fingerprint Dive into the research topics of 'Pulsed-field magnetization of a bulk superconductor with small holes'. Together they form a unique fingerprint.

Cite this

@article{7ef16be5bfef4b0994a47465d5bcdcc8,

title = "Pulsed-field magnetization of a bulk superconductor with small holes",

abstract = "Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.",

keywords = "Flux flow, Flux penetration, Pulsed-field magnetization, Small hole, Superconducting bulk magnet",

author = "K. Yokoyama and T. Oka and N. Kondo and S. Hosaka",

year = "2013",

month = jan,

day = "15",

doi = "10.1016/j.physc.2012.03.074",

language = "English",

volume = "484",

pages = "343--347",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

}

TY - JOUR

T1 - Pulsed-field magnetization of a bulk superconductor with small holes

AU - Yokoyama, K.

AU - Oka, T.

AU - Kondo, N.

AU - Hosaka, S.

PY - 2013/1/15

Y1 - 2013/1/15

N2 - Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.

AB - Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.

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=84875680797&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875680797&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2012.03.074

DO - 10.1016/j.physc.2012.03.074

M3 - Article

AN - SCOPUS:84875680797

VL - 484

SP - 343

EP - 347

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

ER -

Pulsed-field magnetization of a bulk superconductor with small holes

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this