...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica, C. Superconductivity and its applications >The influence of the bulk density on the intergranular superconducting properties of YBa_2Cu_(3-x)Fe_xO_y (0 <= x <= 0.01) ceramics
【24h】

The influence of the bulk density on the intergranular superconducting properties of YBa_2Cu_(3-x)Fe_xO_y (0 <= x <= 0.01) ceramics

机译：堆积密度对YBa_2Cu_（3-x）Fe_xO_y（0 <= x <= 0.01）陶瓷的晶间超导性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The influence of the bulk density of YBa_2Cu_(3-x)Fe_xO_y (0 <= x <= 0.01) ceramics on the intergranular superconducting (SC) properties was studied using the temperature dependence of AC magnetic susceptibility measurements. It was found that the simultaneous variation of the sample's density and the iron impurity concentration does not influence effectively the onset temperature of the SC state T_c~(on). While only increasing of the sample's density shifts the intergranular hysteresis losses peak temperature T_m~J to the lower values which connects with the decreasing of the Josephson magnetic vortices pinning role. It was established that the shielding capability and T_m~J display a plateau with x in the 0.003 <= x <= 0.007 region which is due to the monotonous decrease of the samples's density. It was shown that the shielding capability at the T = 78 K for the sample with 3.8 g/cm~3 is two times higher than that for the sample with the density of 5.0 g/cm~3. The possible interpretations of the observed results are discussed.
机译：利用AC磁化率测量值的温度依赖性研究了YBa_2Cu_（3-x）Fe_xO_y（0 <= x <= 0.01）陶瓷的堆积密度对晶间超导（SC）性能的影响。发现样品密度和铁杂质浓度的同时变化不会有效地影响SC状态T_c〜（on）的起始温度。当仅增加样品的密度时，晶间磁滞损耗峰温度T_m〜J降低到较低的值，这与约瑟夫森磁涡旋钉扎作用的降低有关。可以确定的是，屏蔽能力和T_m_J在0.003 <= x <= 0.007范围内显示出一个平稳的x值，这是由于样品密度的单调下降所致。结果表明，3.8 g / cm〜3的样品在T = 78 K时的屏蔽能力是密度为5.0 g / cm〜3的样品的两倍。讨论了观察结果的可能解释。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号