Bi2212单晶中Pb和Y的掺杂效应  

Effects of Pb and Y doping in Bi2212 Single Crystals

作　　者：李配军[1] 钱亚明[1] 聂阳[1] 白忠[1] 邱里[1] 王智河[1] 

机构地区：[1]南京大学物理系固体微结构国家重点实验室,江苏南京210093

出　　处：《常熟理工学院学报》2005年第6期24-26,共3页Journal of Changshu Institute of Technology

摘　　要：采用自助溶剂固态反应法制备出Bi2212及其Pb和Y掺杂单晶。X射线衍射图表明,除 001峰外,没有杂相峰;其晶体结构参数计算表明,随着Pb和Y掺杂量的增加,晶体c-轴常数减 小。c-轴方向的电阻-温度曲线则显示其超导转变温度为90K左右。We have successfully fabricated Pb and 33 doping Bi2212 single crystals using self-flux soild state reaction method, X - ray diffraction （XRD） pattern of the single crystals shows that there is no peak except （001） peak. The calculated lattice parameter indicates that the c - axis length decreases with the increasing of Ph and Y contents. The ten〉 perature dependence of out- of - plane resistivity shows that the transition temperature is about 90K.

关 键 词：Bi2212单晶 Pb和Y掺杂 X射线衍射 超导电性 

分 类 号：O511[理学—低温物理]