Measurement of trapped flux distribution in a high-Tc superconductor using a flux-gate magnetometer

I. Sasada, Y. Oonaka, K. Harada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The distribution of the trapped flux was measured using a miniaturized flux-gate magnetometer with resolution as high as 0.46 mG at 77 K for a BiSrCaCuO high-Tc superconductor cooled down to 77 K in the presence of ac magnetic field (0.5-50 Hz) of 0.6 G in peak-to-peak and in-plane thermal gradient. The amplitude of the trapped flux decreased with increasing the frequency of ac magnetic field. The amplitude was as small as 2 mG for a 50 Hz ac field, and 43 mG for a 0.5 Hz ac field. The amplitude also became small when the cooling rate was made slow. A symbiotic combination of the high-T c superconducting magnetic shield and the ferromagnetic one with magnetic shaking is proposed, in which merits of both can be enhanced.

Original languageEnglish
Pages (from-to)5635-5637
Number of pages3
JournalJournal of Applied Physics
Volume73
Issue number10
DOIs
Publication statusPublished - 1993

Fingerprint

magnetometers
shaking
magnetic fields
cooling
gradients

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Measurement of trapped flux distribution in a high-Tc superconductor using a flux-gate magnetometer. / Sasada, I.; Oonaka, Y.; Harada, K.

In: Journal of Applied Physics, Vol. 73, No. 10, 1993, p. 5635-5637.

Research output: Contribution to journalArticle

Sasada, I. ; Oonaka, Y. ; Harada, K. / Measurement of trapped flux distribution in a high-Tc superconductor using a flux-gate magnetometer. In: Journal of Applied Physics. 1993 ; Vol. 73, No. 10. pp. 5635-5637.
@article{ce9d427bc2ad4dc683f6c1ad8aa56d48,
title = "Measurement of trapped flux distribution in a high-Tc superconductor using a flux-gate magnetometer",
abstract = "The distribution of the trapped flux was measured using a miniaturized flux-gate magnetometer with resolution as high as 0.46 mG at 77 K for a BiSrCaCuO high-Tc superconductor cooled down to 77 K in the presence of ac magnetic field (0.5-50 Hz) of 0.6 G in peak-to-peak and in-plane thermal gradient. The amplitude of the trapped flux decreased with increasing the frequency of ac magnetic field. The amplitude was as small as 2 mG for a 50 Hz ac field, and 43 mG for a 0.5 Hz ac field. The amplitude also became small when the cooling rate was made slow. A symbiotic combination of the high-T c superconducting magnetic shield and the ferromagnetic one with magnetic shaking is proposed, in which merits of both can be enhanced.",
author = "I. Sasada and Y. Oonaka and K. Harada",
year = "1993",
doi = "10.1063/1.353621",
language = "English",
volume = "73",
pages = "5635--5637",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "10",

}

TY - JOUR

T1 - Measurement of trapped flux distribution in a high-Tc superconductor using a flux-gate magnetometer

AU - Sasada, I.

AU - Oonaka, Y.

AU - Harada, K.

PY - 1993

Y1 - 1993

N2 - The distribution of the trapped flux was measured using a miniaturized flux-gate magnetometer with resolution as high as 0.46 mG at 77 K for a BiSrCaCuO high-Tc superconductor cooled down to 77 K in the presence of ac magnetic field (0.5-50 Hz) of 0.6 G in peak-to-peak and in-plane thermal gradient. The amplitude of the trapped flux decreased with increasing the frequency of ac magnetic field. The amplitude was as small as 2 mG for a 50 Hz ac field, and 43 mG for a 0.5 Hz ac field. The amplitude also became small when the cooling rate was made slow. A symbiotic combination of the high-T c superconducting magnetic shield and the ferromagnetic one with magnetic shaking is proposed, in which merits of both can be enhanced.

AB - The distribution of the trapped flux was measured using a miniaturized flux-gate magnetometer with resolution as high as 0.46 mG at 77 K for a BiSrCaCuO high-Tc superconductor cooled down to 77 K in the presence of ac magnetic field (0.5-50 Hz) of 0.6 G in peak-to-peak and in-plane thermal gradient. The amplitude of the trapped flux decreased with increasing the frequency of ac magnetic field. The amplitude was as small as 2 mG for a 50 Hz ac field, and 43 mG for a 0.5 Hz ac field. The amplitude also became small when the cooling rate was made slow. A symbiotic combination of the high-T c superconducting magnetic shield and the ferromagnetic one with magnetic shaking is proposed, in which merits of both can be enhanced.

UR - http://www.scopus.com/inward/record.url?scp=0006525984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0006525984&partnerID=8YFLogxK

U2 - 10.1063/1.353621

DO - 10.1063/1.353621

M3 - Article

VL - 73

SP - 5635

EP - 5637

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 10

ER -