%0 Journal Article
%T MOSSBAUER EFFECT STUDY OF YBa_2 Cu_(3-x)Sn_x o_(7-y) SYSTEM<br>YBa_2Cu__(3-x)Sn_xO_(7-y)体系的Mossbauer效应研究
%A WANG Genmiao
%A ZHANG Han
%A ZHANG Qirui
%A WU Yonghua Centre of Structure
%A Elements Analysis
%A University of Science
%A Technology of China
%A Hefei
%A <br>王根苗
%A 张酣
%A 张其瑞
%A 吴泳华
%J 金属学报
%D 1990
%I 
%X 通过透射Mossbauer谱的测量,确定了高温超导体YBa_? Cu_(3-x)Sn_xO_(7-y)体系中(x=0.05,0.10,0.20,0.30,0.40),掺入的Sn以Sn~(4+)离子的形式存在,并在体系中分别占据着Cu(Ⅰ)和Cu(Ⅱ)两种位置,二者位置的相对比例随Sn的掺入量(x)而变化,超导转变温度(T_c)的测量表明,少量Sn的掺入使T_c略有降低。
%K Y-Ba-Cu-O system
%K Mossbauer spectrum
%K superconductivity transition temperature
%K substitution<br>Y-Ba-Cu-O体系
%K Mossbauer谱
%K 超导转变温度
%K 替代
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=A567CCF5A4ADE20E295370EA0FA76746&yid=8D39DA2CB9F38FD0&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=E22B6B8FE86DD8F9&eid=A020552C37306588&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1