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The trapped field properties during pulsed-field magnetization (PFM) have been investigated numerically using three different assumptions relating to the <italic>J</italic>c(<italic>B</italic>, <italic>T</italic>) characteristics (Jirsa, Kim, and Bean models) and compared with experimental results. The trapped field properties using the Jirsa model with the so-called “peak effect,” in which a realistic <italic>J</italic>c(<italic>B</italic>, <italic>T</italic>) is assumed, rather than the Kim model, result in a more realistic numerical simulation. The trapped field properties using a Kim model with a monotonically decreasing <italic>J</italic>c(<italic>B</italic>) also show similar results to those using the Jirsa model. The trapped field properties using a Bean model, for which <italic>J</italic>c is independent of magnetic field, are not necessarily enhanced because of a larger temperature rise. The numerical results suggest it is necessary to fabricate REBaCuO bulks with <italic>J</italic>c(<italic>B</italic>, <italic>T</italic>) characteristics with moderate magnetic field and temperature dependences to enhance the trapped field by PFM.

ieee transactions on applied superconductivity

Influence of &lt;italic&gt;J&lt;/italic&gt;c(&lt;italic&gt;B&lt;/italic&gt;, &lt;italic&gt;T&lt;/italic&gt;) Characteristics on the Pulsed Field Magnetization of REBaCuO Disk Bulks