Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods

T. Kono, H. Fukai, Naomichi Sakai, S. Nariki, I. Hirabayashi, Masato Murakami, N. Koshizuka

Research output: Contribution to journalArticle

Abstract

We investigated magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by means of a conventional scanning Hall probe (SHP) method and a recently developed magneto-scan method. In the SHP method, we measured the trapped flux density distributions of the superconductors by scanning a Hall sensor above the sample surface. On the other hand, in the magneto-scan method, we scanned a Hall probe sensor together with a permanent magnet, which allowed us to detect the field shielding behavior on the sample surface without applying a strong external field. It was found that the magneto-scan method was more sensitive than the SHP method for the detection of local structures in the flux density distributions.

Original languageEnglish
Pages (from-to)632-638
Number of pages7
JournalPhysica C: Superconductivity and its Applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 2005 Oct 1

Fingerprint

Superconducting materials
homogeneity
Scanning
scanning
evaluation
probes
density distribution
flux density
Fluxes
sensors
Sensors
permanent magnets
Shielding
Permanent magnets
shielding

Keywords

  • Gd-Ba-Cu-O
  • Homogeneities
  • Magneto-scan method
  • Scanning Hall probe method

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods. / Kono, T.; Fukai, H.; Sakai, Naomichi; Nariki, S.; Hirabayashi, I.; Murakami, Masato; Koshizuka, N.

In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 632-638.

Research output: Contribution to journalArticle

@article{0f51ea06d32745e8a2e4f4336b5b21d5,
title = "Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods",
abstract = "We investigated magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by means of a conventional scanning Hall probe (SHP) method and a recently developed magneto-scan method. In the SHP method, we measured the trapped flux density distributions of the superconductors by scanning a Hall sensor above the sample surface. On the other hand, in the magneto-scan method, we scanned a Hall probe sensor together with a permanent magnet, which allowed us to detect the field shielding behavior on the sample surface without applying a strong external field. It was found that the magneto-scan method was more sensitive than the SHP method for the detection of local structures in the flux density distributions.",
keywords = "Gd-Ba-Cu-O, Homogeneities, Magneto-scan method, Scanning Hall probe method",
author = "T. Kono and H. Fukai and Naomichi Sakai and S. Nariki and I. Hirabayashi and Masato Murakami and N. Koshizuka",
year = "2005",
month = "10",
day = "1",
doi = "10.1016/j.physc.2005.02.100",
language = "English",
volume = "426-431",
pages = "632--638",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "I",

}

TY - JOUR

T1 - Evaluation of magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by different Hall probe scanning methods

AU - Kono, T.

AU - Fukai, H.

AU - Sakai, Naomichi

AU - Nariki, S.

AU - Hirabayashi, I.

AU - Murakami, Masato

AU - Koshizuka, N.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - We investigated magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by means of a conventional scanning Hall probe (SHP) method and a recently developed magneto-scan method. In the SHP method, we measured the trapped flux density distributions of the superconductors by scanning a Hall sensor above the sample surface. On the other hand, in the magneto-scan method, we scanned a Hall probe sensor together with a permanent magnet, which allowed us to detect the field shielding behavior on the sample surface without applying a strong external field. It was found that the magneto-scan method was more sensitive than the SHP method for the detection of local structures in the flux density distributions.

AB - We investigated magnetic homogeneities of Gd-Ba-Cu-O bulk superconductors by means of a conventional scanning Hall probe (SHP) method and a recently developed magneto-scan method. In the SHP method, we measured the trapped flux density distributions of the superconductors by scanning a Hall sensor above the sample surface. On the other hand, in the magneto-scan method, we scanned a Hall probe sensor together with a permanent magnet, which allowed us to detect the field shielding behavior on the sample surface without applying a strong external field. It was found that the magneto-scan method was more sensitive than the SHP method for the detection of local structures in the flux density distributions.

KW - Gd-Ba-Cu-O

KW - Homogeneities

KW - Magneto-scan method

KW - Scanning Hall probe method

UR - http://www.scopus.com/inward/record.url?scp=25444448743&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25444448743&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2005.02.100

DO - 10.1016/j.physc.2005.02.100

M3 - Article

VL - 426-431

SP - 632

EP - 638

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - I

ER -