Open AccessSTUDY ON PROPERTIES OF T* PHASE SUPERCONDUCTING CUPRATES (Bi0.5Sr1.5)(Y,Ce)2Cu2Oy
Author(s) -
Yongjian Zhang,
Xianhui Chen,
Lei Cao
Publication year - 1997
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.46.975
Subject(s) - cuprate , superconductivity , quenching (fluorescence) , materials science , phase (matter) , condensed matter physics , type (biology) , phase transition , transition temperature , physics , quantum mechanics , ecology , fluorescence , biology
The optimal synthesis of T* phase superconductors(Bi0.5Sr1.5)(Y,Ce)2Cu2Oy was studied in detail. Slow cooling was required for preparation of single phase T*-type compounds. After quenching,the samples contained Ce2Y2O7 as the major phase without T* structure presented. From room temperature to 1000℃ phase transition was not observed by thermal analysis. Upon slow cooling in oxygen, T*-type cuprates exhibited zero resistance at 30K.