摘要
在液氮温度下测量了几种不同工艺制备的 YBa_2Cu_3O_(～7)样品的临界电流 Jc。结果发现Jc 与相应的环状样品进行低场磁性测最所得到的一些物理参量呈单调变化关系。在这种意义上,这些参量可以定量地表征材料中弱连接的性质。
The critical current densties Jc of several YBa2Cu3O-7 samples prepared by different processes hava been measured at liquid nitrogen temperature. It is found that Jc is related monot onously with some parameters obtained definitely by measuring the magnetic hysteresis curves at low fields of the corresponding ring-shaped samples. In this sense, these parameters characterize quantitatively the state of the weak Couplings in the materials.
出处
《低温与超导》
CAS
CSCD
北大核心
1989年第1期44-46,共3页
Cryogenics and Superconductivity
基金
中国国家自然科学资金
