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Title: Construction of the current-voltage characteristic in a 12 decade voltage window using magnetisation measurements
Authors: Vanacken, Johan ×
Rosseel, Kris
Lagutin, AS
Trappeniers, Lieven
Van Bael, Margriet
Dierickx, D
Meersschaut, Johannes
Boon, Willy
Herlach, Fritz
Moshchalkov, Victor
Bruynseraede, Yvan #
Issue Date: 1997
Publisher: Adam Hilger
Series Title: Institute of Physics Conference Series issue:158 pages:985-988
Abstract: Pulsed Field Magnetisation Measurements (PFMM) in a field range up to 50 Tesla are compared with SQUID and VSM magnetisation measurements in lower fields. Experiments on fast melt processed YBa2Cu3O7 with Y2BaCuO5 inclusions show high values of the "magnetic" critical current (j(c) > 10(9) A/m(2) at T=20 K and mu(0)H similar to 4 T). The j(c) values are quite different for the pulsed field, the SQUID and VSM magnetisation measurements since the voltage criterion associated with these different magnetisation measurement techniques extends over a 12 decade window, thus allowing us to construct the E-j characteristic. The PFMM seem to be most suitable to determine the "real" critical current which is defined as the current density j inside the sample reaching its limiting value j(c).
ISSN: 0951-3248
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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