TY - JOUR
T1 - Study of flux behavior in Bi2Sr2CaCu2O8 single crystal in external magnetic fields up to 1 T
AU - Koblischka, M. R.
AU - Wijngaarden, R. J.
AU - de Groot, D. G.
AU - Griessen, R.
AU - Menovsky, A. A.
AU - Li, T. W.
N1 - Funding Information:
We thank R. Bakker for help with some of the measurements. This work is part of the research program of the Stichting voor Fundamenteel Onder-zoek der Materie (FOM), which is financially supported by NWO.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1995/7/15
Y1 - 1995/7/15
N2 - Using the high-resolution Faraday effect (HRF) technique, the behavior of magnetic flux in Bi2Sr2CaCu2O8 single crystals is visualized in external magnetic fields up to 1 T. This technique reveals defects in many of these crystals which are probably twin planes. X-ray measurements indicate that two adjacent crystallites have c-axis lattice vectors which deviate from each other by about one degree. As a consequence of these defects, the shielding currents break up in sub-loops, each shielding a defect-free part of the sample. This leads to an underestimate of the critical current values determined by non-local magnetization measurements. Magneto-optical images can be used to calculate the necessary correction.
AB - Using the high-resolution Faraday effect (HRF) technique, the behavior of magnetic flux in Bi2Sr2CaCu2O8 single crystals is visualized in external magnetic fields up to 1 T. This technique reveals defects in many of these crystals which are probably twin planes. X-ray measurements indicate that two adjacent crystallites have c-axis lattice vectors which deviate from each other by about one degree. As a consequence of these defects, the shielding currents break up in sub-loops, each shielding a defect-free part of the sample. This leads to an underestimate of the critical current values determined by non-local magnetization measurements. Magneto-optical images can be used to calculate the necessary correction.
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U2 - 10.1016/0921-4534(95)00323-1
DO - 10.1016/0921-4534(95)00323-1
M3 - Article
AN - SCOPUS:0029346273
SN - 0921-4534
VL - 249
SP - 339
EP - 349
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 3-4
ER -