TY - JOUR
T1 - Anisotropy of critical current density in superconducting networks
AU - Tsuchiya, Y.
AU - Nakajima, Y.
AU - Tamegai, T.
AU - Nagasawa, S.
AU - Hidaka, M.
PY - 2013/1/15
Y1 - 2013/1/15
N2 - We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near Tc at zero field, anomalous enhancements of voltage for 0° are observed.
AB - We have fabricated Nb square superconducting networks and measured critical current density with current flowing along the direction of 0° and 45° tilted from the lattice of the networks. The temperature and magnetic field dependences of the critical current density for both directions are measured and compared with the flux penetration pattern in those samples. It is found that the anisotropy of the critical current density reflects the flux penetration pattern in the superconducting network samples. Near Tc at zero field, anomalous enhancements of voltage for 0° are observed.
KW - Critical current density
KW - Flux flow
KW - Superconducting network
KW - Vortex pinning
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U2 - 10.1016/j.physc.2012.03.046
DO - 10.1016/j.physc.2012.03.046
M3 - Article
AN - SCOPUS:84875636647
SN - 0921-4534
VL - 484
SP - 91
EP - 93
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
ER -