Abnormal Transverse-Field Effects in Nonideal Type II Superconductors I. : A Linear Array of Monofilamentary Wires

概要

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When an AC magnetic field was applied in the axial direction to a linear array of superconducting monofilamentary wires in the presence of a DC magnetic field perpendicular to the axes of the wires, it was found that the component of flux along the DC field changed its semi-quasistatic distribution in each cycle of the AC field and finally reached a uniform distribution after several tens of cycles. In the steady state, the AC component of flux showed a distribution of the Bean-London type with a reduced pinning force. For a small amplitude of AC field, the observed hysteresis loss increased with increase in the DC field. All of these characteristics exhibit a striking contrast to those of the so-called longitudinal-field effects, and may be called abnormal transverse-field effects; they have not been observed until now.
社団法人応用物理学会の論文
1982-02-05