TY - JOUR
T1 - Effects of artificial pinning centers on vortex pinning in high-temperature superconducting films
AU - Matsumoto, K.
AU - Horide, T.
AU - Mele, P.
AU - Yoshida, Y.
AU - Mukaida, M.
AU - Ichinose, A.
AU - Horii, S.
PY - 2005/10/7
Y1 - 2005/10/7
N2 - One-dimensional artificial pinning centers (APCs) were introduced perpendicular to the surface of the c-axis oriented YBa2Cu 3O7-δ (YBCO) films by using Y2O 3 nano-islands which were distributed on the substrates. In-field Jc of the films was remarkably enhanced by this method and reached to 0.12 MA/cm2 (77 K, B∥c, 5 T), which was 2-2.5 times higher than that of a pure YBCO film. The present films had a large Jc peak when the field was applied close to the c-axis. The results indicate that the strong APCs were introduced into the YBCO films. The vortex pinning by the present APCs is discussed based on the accommodation angle of the vortices.
AB - One-dimensional artificial pinning centers (APCs) were introduced perpendicular to the surface of the c-axis oriented YBa2Cu 3O7-δ (YBCO) films by using Y2O 3 nano-islands which were distributed on the substrates. In-field Jc of the films was remarkably enhanced by this method and reached to 0.12 MA/cm2 (77 K, B∥c, 5 T), which was 2-2.5 times higher than that of a pure YBCO film. The present films had a large Jc peak when the field was applied close to the c-axis. The results indicate that the strong APCs were introduced into the YBCO films. The vortex pinning by the present APCs is discussed based on the accommodation angle of the vortices.
KW - Artificial pinning center
KW - J
KW - Vortex pinning
KW - YBCO
UR - http://www.scopus.com/inward/record.url?scp=25644434846&partnerID=8YFLogxK
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U2 - 10.1016/j.physc.2005.02.094
DO - 10.1016/j.physc.2005.02.094
M3 - Conference article
AN - SCOPUS:25644434846
SN - 0921-4534
VL - 426-431
SP - 1091
EP - 1095
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - II
T2 - Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity
Y2 - 23 November 2004 through 25 November 2004
ER -