Magnetization properties by a pulsed magnetic field were studied in YBaCuO superconductors prepared by the Melt-Powder-Melt-Growth (MPMG) process. The sample size was 10 mm × 10 mm × 1 mm. A pulsed magnetic field of up to 2.3 T was applied perpendicular to the sample surface at 77 K. Two-dimensional distributions of the trapped magnetic field over the YBaCuO sample surface were measured at 77 K by a scanning Hall sensor. A maximum magnetic field of 0.15 T was trapped. The maximum trapped magnetic field increased with an increasing applied magnetic field, and showed a peak. Then the trapped field decreased with a further increasing pulsed magnetic field.
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