Abstract
Prototype systems of home-made magneto-optical microscopes were fabricated, and preliminary studies were carried out using Bi 2Sr 2CaCu 2O 8+ δ single crystals and an YBa 2Cu 3O 7− δ superconductor vortex flow transistor. In the study using BSCCO crystals, we succeeded in the observation of magnetic flux penetration into half-peeled thin flake region on the crystal surface, and it was found that the magnetic fluxes penetrate in characteristic one-dimensional alignment almost along the crystal a-axis. On the other hand, in the study using the YBCO device clear changes in the generated magnetic field distribution could be detected corresponding to the current direction.
Published Version
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