摘要
本文描述适用于频率法的改进振荡器电路和二个变型电感线圈。YBaCuO 样品中超导相含量和 BiSrCaCuO 样品中两相超导成分都在 F—T 曲线中有反映。使用一种变型线圈,粗略地估测了块状样品的有效穿透深度。实验表明,频率法很适用干块状高 T_c 超导体的研究。
In this paper we describe a improved circuit of oscillator and t-wo modified inductance coils which are well used in frequency- method. The superconducting phase contents of Y Ba CuO samples and two superconducting phases in BiSrCaCuO samples are reflacted at F-T curves.The efficient penetration depth of a bulk sample was estimated roughly by using one modified coil. The experiments show that the freguency-method is adeguate for reserching bulk high-Tc superconduct ors.
出处
《低温与超导》
CAS
CSCD
北大核心
1989年第4期39-43,共5页
Cryogenics and Superconductivity
