Investigation of the magnetic properties of BSCCO superconductors with scanning Hall probe microscope
Author
Dede, Münir
Advisor
Oral, Ahmet
Date
2002Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Abstract
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.
Keywords
Scanning Hall Probe Microscopy (SHPM)Hall probes
Magnetization measurement
Superconductivity
BSCCO
Single quantum flux