%0 Journal Article
%T Structural and microstructural transformations in Bi_2Sr_2Ca_(1-x)Y_xCu_2O_(8+y) system<br>
%A Song Chengyu
%A Wen Shulin
%A Che Guangcan
%A <br>
%J 科学通报(英文版)
%D 1997
%I 
%X Conclusions With the substitution of Y for Ca in BSCYCO system, both the hole concentration and structure parameters change. The superconductor-nonsuperconductor transition at xc = 0.4 is more sensitive to the structure transformation than the variation in the hole concentration. Microanalysis reveals an inhomogeneous substitution of Y for Ca. So a much sharper drop of T, is expected at transition point by ideal monophase samples of BSCYCO. A ratio of lattice constants c / o. 5 (a + b) is found to be a very good parameter of describing the SC-AF transition of ISCYCO, reflecting the degree of the localization of Cu-3d electrons on the CuOz plane.
%K Bi2Sr2Ca1 -x
%K YxCu2Oy
%K substitution
%K structural transformation<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=EB68F4995E7D8D3B8FC01EE65C803953&yid=5370399DC954B911&vid=ECE8E54D6034F642&iid=38B194292C032A66&sid=C29816B2656377A7&eid=C29816B2656377A7&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0