Flux motion studies by means of temperature measurement in magnetizing processes for HTSC bulks

The temperature rises /spl Delta/T(t) of cryo-cooled SmBaCuO bulk superconductor have been measured after applying the pulse magnetic field from B/sub ex/ = 3.01 to 5.42 T for various initial stage temperatures (T/sub s/ = 40 K /spl sim/ 70 K). For each T/sub s/ and B/sub ex/, the observed systematic change of /spl Delta/T and the trapped magnetic field B/sub T/ can be explained in terms of the diagram of the maximum temperature measured at the bulk center surface (T/sup 0//sub max/) vs. B/sub T/. The maximum temperature rise /spl Delta/T/sub max/ decreases with increasing T/sub s/ under the identical B/sub ex/.