%0 Journal Article
%T LOW-FIELD MICROWAVE SIGNAL IN UNDOPED AND Sb-DOPED Bi-Pb-Sr-Ca-Cu-O<br>
%A HOU BI-HUI
%A WANG MEI-SHENG
%A CHEN ZHAO-JIA
%A XU QIN-LUN
%A JIN TONG-ZHENG
%A <br>
%J 中国物理 B
%D 1994
%I 
%X Non-resonant low-field microwave signal in undoped Bi-Pb-Sr-Ca-Cu-O (2223) sample inches monotonously with decreasing temperature, like that in many bulk samples of high-Tc superconductor. But the signed of a Sb-doped sample shows a peak at 103K, and declines gradually and tends to stabilize when the temperature is further reduced. A distorted 2223 phase (i.e., 130K phase) which was an intergrowth of 2223 and insulating monoclinic phases in the Sb-doped sample, was unstable, and it might change into the stable insulating monoclinic phase and lost its superconductivity at lower temperatures.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=6B8D1350685AD4D469A0CED6CEB4E0C7&yid=3EBE383EEA0A6494&vid=38B194292C032A66&iid=9CF7A0430CBB2DFD&sid=C3BC38F6CC09E835&eid=FD6137FFCE59D193&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0