TY - JOUR
T1 - Flux Avalanches in Multi-layer Superconducting Strip Arrays
AU - Tada, S.
AU - Tsuchiya, Y.
AU - Mine, A.
AU - Pyon, S.
AU - Tamegai, T.
AU - Nagasawa, S.
AU - Hidaka, M.
N1 - Funding Information:
The devices were fabricated in the Clean Room for Analog-digital superconductiVITY (CRAVITY) in National Institute of Advanced Industrial Science and Technology (AIST).
Publisher Copyright:
© 2014 Published by Elsevier B.V.
PY - 2014
Y1 - 2014
N2 - We have fabricated three-dimensional double- and triple-layer strip arrays of Nb and observed flux penetration into these strip arrays with an applied field perpendicular to the plane by using the magneto-optical imaging method. In the triple-layer strip arrays with large overlaps between the strips, we observed flux avalanches and one-dimensional penetrations perpendicular to the strip similar to the case of double-layer strip arrays. In thicker triple-layer samples, we also observed flux avalanches parallel to the strip. Enhanced demagnetization effect, thermal conductivity between the neighboring layers, and the driving force parallel to the strip are believed to cause these avalanches.
AB - We have fabricated three-dimensional double- and triple-layer strip arrays of Nb and observed flux penetration into these strip arrays with an applied field perpendicular to the plane by using the magneto-optical imaging method. In the triple-layer strip arrays with large overlaps between the strips, we observed flux avalanches and one-dimensional penetrations perpendicular to the strip similar to the case of double-layer strip arrays. In thicker triple-layer samples, we also observed flux avalanches parallel to the strip. Enhanced demagnetization effect, thermal conductivity between the neighboring layers, and the driving force parallel to the strip are believed to cause these avalanches.
KW - Flux avalanches
KW - Magneto-optical imaging
KW - Superconducting network
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U2 - 10.1016/j.phpro.2014.09.018
DO - 10.1016/j.phpro.2014.09.018
M3 - Conference article
AN - SCOPUS:84944517176
SN - 1875-3892
VL - 58
SP - 126
EP - 129
JO - Physics Procedia
JF - Physics Procedia
T2 - 26th International Symposium on Superconductivity, ISS 2013
Y2 - 18 November 2013 through 20 November 2013
ER -