TY - JOUR
T1 - Imaging flux distributions around superconductors
T2 - Geometrical susceptibility in the Meissner state
AU - Grisolia, Mathieu N.
AU - Badía-Majós, Antonio
AU - Van Der Beek, Cornelis Jacominus
PY - 2013/11/28
Y1 - 2013/11/28
N2 - Experiment and analytical calculations show that the demagnetizing field of a superconductor is a sensitive probe of quantities otherwise difficult to measure, such as the sample-probe distance in flux-density imaging experiments and the field of first flux penetration Hp. In particular, the ratio of the maximum field measured above the superconductor edge and the applied field can be determined unambiguously so as to define a linear "geometric" susceptibility. The evolution of this susceptibility with field depends on the regime of flux penetration and can be used as a means to determine Hp and the effect of a parallel field component in magneto-optical imaging experiments.
AB - Experiment and analytical calculations show that the demagnetizing field of a superconductor is a sensitive probe of quantities otherwise difficult to measure, such as the sample-probe distance in flux-density imaging experiments and the field of first flux penetration Hp. In particular, the ratio of the maximum field measured above the superconductor edge and the applied field can be determined unambiguously so as to define a linear "geometric" susceptibility. The evolution of this susceptibility with field depends on the regime of flux penetration and can be used as a means to determine Hp and the effect of a parallel field component in magneto-optical imaging experiments.
U2 - 10.1063/1.4834519
DO - 10.1063/1.4834519
M3 - Article
AN - SCOPUS:84888588272
SN - 0021-8979
VL - 114
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 20
M1 - 203904
ER -