Critical current density and trapped field in HTS with asymmetric magnetization loops

9th International Workshop on Processing and Applications of Superconducting (RE)BCO Large Grain Materials

物理学;材料科学

Gokhfeld, D.^1

Kirensky Institute of Physics SB RAS, Akademgorodok 50/38, Krasnoyarsk

66036, Russia^1

关键词: Critical state models;    Field dependence;    Grain size;    Hysteresis curve;    Magnetization loops;    Superconducting grains;    Trapped field;    Trapped magnetic field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/695/1/012008/pdf
DOI  :  10.1088/1742-6596/695/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Applications of the extended critical state model are considered. The trapped magnetic field, the penetration field and the field dependence of the critical current density are analysed. The critical current density and the trapped field in superconducting grains depend on the grain size. Asymmetry of the hysteresis curves relative to the M = 0 axis is related to the scale of the current circulation.