%0 Journal Article
%T MOSSBAUER EFFECT STUDY OF YBa_2Cu_(3-x)Sn_xO_(7-y)SYSTEM
%A WANG Genmiao ZHANG Han ZHANG Qirui WU Yonghua University of Science
%A Technology of China
%A Hefei
%A China
%A <br>WANG Genmiao ZHANG Han ZHANG Qirui WU Yonghua University of Science and Technology of China
%A Hefei
%A China
%J 金属学报(英文版)
%D 1991
%I 
%X Mssbauer spectra measurements reveal that Sn exists in YBa_2Cu_(3_x)Sn_xO_(7_y) system (x=0.05,0.10,0.20,0.30 and 0.40)in form of Sn~(4+) and occupies Cu(1)and Cu(2)sites.The relative rate at which Sn~(4+) occupies Cu(1)or Cu(2)sites varies with x.The superconductivity transition temperature,T_c,depresses slightly due to the substitution of Cu for Sn.
%K Y-Ba-Cu-O system
%K M(?)ssbauer spectrum
%K substitution
%K superconductivity transition temperature<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=2F572629CD46799F6BFAC2460BC859B9&yid=116CB34717B0B183&vid=E158A972A605785F&iid=5D311CA918CA9A03&sid=12DC19455C3A2FA8&eid=E22B6B8FE86DD8F9&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=6