Effect of dc field on ac-loss peak in a commercial Bi:2223/Ag tape
作者： Ali Öztürk , İbrahim Düzgün , Selahattin Çelebi
关键词: Field dependence 、 Amplitude 、 Ac field 、 Field (physics) 、 Power law 、 Magnetic field 、 Condensed matter physics 、 Materials science 、 Dc field 、 Perpendicular
摘要: Measurements of the ac susceptibility in a commercial Bi:2223/Ag tape for some different magnetic field amplitudes, H , presence bias dc directed along are reported. It is found that peak values imaginary component χ″ max versus trace valley orientation where applied perpendicular to wide face total. We note observation depends on various parameters such as dependence parameter n critical current density, simple power law expression j c = α (T )/Bn choice together with selected amplitudes and dimension geometry sample studied. Our calculations based state model (1 − T /T cm )p /Bn using fitting = 0.25, p = 2.2, T = 108 K gives quite good results compare experimental calculated curves.
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