Investigation of the magnetic properties of BSCCO superconductors with scanning Hall probe microscope
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A low temperature scanning Hall probe microscope (LT-SHPM) with low noise GaAs/AlGaAs 2DEG Hall probes is used to investigate the magnetic properties of a Ag-sheathed BSCCO-2223 tape and a single crystal BSCCO-2212 superconductor. The Hall probes are micro fabricated with 1 µm wide Hall bars which have ∼0.85 µm electrical width. The magnetization behavior, vortex structures and the vortex lattice melting are observed at 77 K. Flux penetration into the BSCCO-2212 single crystal is also observed and imaged with single vortex resolution.
KeywordsScanning Hall Probe Microscopy (SHPM)
Single quantum flux
QH212.S3 D43 2002
Scanning probe microscopy.