【摘要】 采用特殊的频率法装置,对一个逐次研磨为七个不同厚度的 YBaCuO块伏超导体测得振荡周期随温度的变化曲线。对振荡周期的相对变化（△τ/τ₀）与样品厚度（d）的关系曲线分析后,估测此样品的有效穿透深度λ_e为0.12 mm（77K）。更多还原

【Abstract】 Grinded successively to different thicknesses, a bulk Y-Ba-Cu-O superconduc-tor was measured with a special frequeney-method apparature. Seven curves of theoscillatory period versus temperature have been obtained. Analyses on the relativechanges of oscillatory periods with respect to the samples’s thickness show that theefficient bulk penetration λ_β is estimated to be 0.12mm(77K).更多还原