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首页> 外文期刊>Physica, C. Superconductivity and its applications >EFFECTS OF 230 MEV AU-14 IRRADIATION ON BI2SR2CACU2OX
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EFFECTS OF 230 MEV AU-14 IRRADIATION ON BI2SR2CACU2OX

机译：230 MEV AU-14辐照对BI2SR2CACU2OX的影响

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摘要

Bi2Sr2CaCu2Ox tapes were irradiated using 230 MeV Au14+ ions. Columnar defects were presumably produced due to irradiation. Zero-field-cooling (ZFC) magnetization increased up to a fluence of 1.6 X 10(11) Au+/cm(2), but field-cooling (FC) magnetization decreased, indicating the strong pinning effects resulting from the columnar defects. The critical current density as well as the irreversibility field, obtained from the hysteresis loops, were enhanced. Irreversibility fields are fitted by H-irr = A exp(-T/T-A). An effective activation energy for flux motion was obtained from the measurements of magnetization relaxation. The features of flux pinning as a result of the columnar defects were compared with those of point defects brought about by 120 MeV O7+ irradiation. [References: 9]
机译：使用230 MeV Au14 +离子辐照Bi2Sr2CaCu2Ox胶带。可能是由于辐照产生柱状缺陷。零场冷却（ZFC）磁化强度增加到1.6 X 10（11）Au + / cm（2）的通量，但场冷却（FC）磁化强度减小，表明由柱状缺陷引起的强钉扎效应。从磁滞回线获得的临界电流密度以及不可逆场得到了增强。 H-irr = A exp（-T / T-A）拟合不可逆字段。从磁化弛豫的测量中获得了有效的通量运动活化能。比较了由柱状缺陷引起的助焊剂钉扎的特征与由120 MeV O7 +辐射引起的点缺陷的特征。 [参考：9]

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