Bi_(1.7)Pb_(0.3)Sr_2Ca_2Cu_3Oy掺K效应的初步研究  

PRELIMINARY STUDYING OF K DOPING EFFECT IN Bi 1.7 Pb 0.3 Sr 2Ca 2Cu 3 O y

作　　者：周玲[1] 卢秉松[1] 杨小平[1] 

机构地区：[1]安徽师范大学物理系

出　　处：《安徽师大学报》1997年第2期123-125,共3页

基　　金：安徽师范大学青年科研基金

摘　　要：本文研究了Ｂｉ－２２２３相掺入Ｋ的效应，发现碱金属元素Ｋ的掺入提高了Ｂｉ系１１０Ｋ相的含量．指出Ｋ的掺入，一方面占据了格点的位置提高了Ｔｃ，另一方面使熔点降低，非超导的杂相析出。In this paper, the effect of K doping in Bi 2223 phase is studied. The K doping makes the Tc onset of 110K phase raised but reduces its content. We point out that K takes lattice stiuation. Otherwise K doping makes the melting point lower and nonsuperconductive phase separated out, so that its contrentare reduced.

关 键 词：超导体 钾 掺杂 BPSCCO 超导性能 

分 类 号：O511.2[理学—低温物理]