TY - JOUR
T1 - Study of flux entry and exit into Bi-2223 multifilamentary tapes
AU - Koblischka, M. R.
AU - Johansen, T. H.
AU - Bratsberg, H.
AU - Vase, P.
PY - 1998/5/1
Y1 - 1998/5/1
N2 - Using magneto-optic imaging, the flux entry and exit into a piece of Ag-sheathed Bi2Sr2Ca2Cu3O10+δ multifilamentary tape are studied in an applied magnetic field. In low fields the shielding currents are seen to flow mostly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. In the remanent state, the flux is confined to the tape centre and is not pinned in each filament independently. The magneto-optic flux patterns obtained reveal that the filaments in the tape are coupled together, which enables the currents to flow around defects within the filaments.
AB - Using magneto-optic imaging, the flux entry and exit into a piece of Ag-sheathed Bi2Sr2Ca2Cu3O10+δ multifilamentary tape are studied in an applied magnetic field. In low fields the shielding currents are seen to flow mostly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. In the remanent state, the flux is confined to the tape centre and is not pinned in each filament independently. The magneto-optic flux patterns obtained reveal that the filaments in the tape are coupled together, which enables the currents to flow around defects within the filaments.
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U2 - 10.1088/0953-2048/11/5/007
DO - 10.1088/0953-2048/11/5/007
M3 - Article
AN - SCOPUS:0343103002
VL - 11
SP - 479
EP - 484
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 5
ER -