Abstract
A levitation force (LF), attractive force (AF) and trapped magnetic field (TMF) at 77 K of the multi-seeded melt processed (MSMG) bulk samples (single grain to five grain) were studied. The LF and TMF values of the MSMG-processed samples, cooled by both field cooling and zero-field cooling method, were smaller than that of a single grain sample, depending on the number of a grain. The trapped magnetic field analysis showed the magnetic fields were easily penetrated through the grain boundaries of multi-grain samples, because of the weak connection of (1 0 0)/(1 0 0) junctions. The poorly connected grain boundaries are thought to be the cause for the low LF and TMF values of the multi-grain samples.
Published Version
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