摘要
对ＹＢａ２Ｃｕ３Ｏ７－δＨｘ样品的研究表明，其常态电阻率ρｎ高达１．１２×１０－５Ω·ｍ，来吸收氢样品的常态电阻率ρｎ’只有４．８×１０－７Ω·ｍ。而吸收氢样品的临界电流密度Ｊｃ只比没吸收氢样品降低２７％。氢在样品中以填隙或吸附的方式存在，其中填隙原子对提高常态电阻率起主要作用。
The study of the samPles of the absorbing hydrogen indicates that their normal resistivity Pn is up to 1. 12×10-5 Ω·m, in contrast with Pn' = 4.8 × 10-7 Ω· m for samples without absorbing hydrogen, and their critical current density Jc is only 27% lower than that of samples without absorbing hydrogen. The hydrogen exists in samples by interstitial or absorbing. The interstitial atoms play a main role in increasing the normal resistivity of the samples.
出处
《低温与超导》
CAS
CSCD
北大核心
1994年第2期46-49,共4页
Cryogenics and Superconductivity
