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, N.
AU - Nariki, S.
AU - Hirabayashi, I.
AU - Murakami, M.
AU - Koshizuka, N.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental technologies for Superconductivity Applications. The authors would like to thank the Iwate Industrial Promotion Center for their financial support.
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 - Conference article
AN - SCOPUS:25444448743
SN - 0921-4534
VL - 426-431
SP - 632
EP - 638
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - I
T2 - Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity
Y2 - 23 November 2004 through 25 November 2004
ER -