Hg蒸气处理对TLBaCaCuO膜的超导电性的影响  

Effects of Thermal Treating in Hg Vapour on Superconductivity of TIBaCaCuO Thick Film

作　　者：陈宏琦[1] 千正男[1] 王德涌[1] 张玉君[1] 

机构地区：[1]吉林大学物理系

出　　处：《低温与超导》1996年第3期59-62,共4页Cryogenics and Superconductivity

摘　　要：该本研究了ＴＩＢａ２Ｃｕ３Ｏ９印刷膜在Ｈｇ蒸气中热处理对其超导电性的影响。经６００℃短时间热处理，ＴＩ—１２２３相的（００１）衍射峰明显增强．Ｈｇ离子进入晶格可能是产生织构的主要原因，随着热处理时间的增加，（００１）峰的相对强度变弱，织构消失，超导转变温度逐渐下降。ＴＩ—１２２３相的部分分解和一些含Ｈｇ化合物的形成是造成Ｔｃ下降的主要原因之一。Effects of thermal treating in Hg vapour on superconductivity thick film have been investigated.The(001)diffraction peaks of the TI - 1223 phase were obviously strengthened through post-annealing in Hg vapour at 600℃ for a short time. It is a main reason of creating the texture that Hg ions entered to the TI- 1223 phase lattice. The (001) peaks reduced weak, the texture degenerated, superconducting transition temperature decreased with the post -annealing time increasing. The decomposition of the TI - 1223 phases and the formations of some compounds included Hg make Tc drastically to decrease.

关 键 词：超导薄膜 转变温度 汞蒸气 超导电性 

分 类 号：O511.2[理学—低温物理]