发明授权
- 专利标题: Oxide superconductor and method of producing same
- 专利标题(中): 氧化物超导体及其制造方法
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申请号: US356640申请日: 1994-12-15
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公开(公告)号: US5670457A公开(公告)日: 1997-09-23
- 发明人: Seiji Adachi , Changqin Jin , Xiao-Jing Wu , Hisao Yamauchi , Shoji Tanaka
- 申请人: Seiji Adachi , Changqin Jin , Xiao-Jing Wu , Hisao Yamauchi , Shoji Tanaka
- 申请人地址: JPX JPX
- 专利权人: International Superconductivity Technology Center,Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: International Superconductivity Technology Center,Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX JPX
- 优先权: JPX5-328547 19931224
- 主分类号: C01G1/00
- IPC分类号: C01G1/00 ; C01G3/00 ; H01B12/00 ; H01B13/00 ; H01L39/12 ; C04B35/01 ; C04B35/03
摘要:
An oxide superconductor composed of Cu, O and at least one of Ba, Sr and Ca and including alternately arranged at least one oxygen-deficient perovskite structure section and at least one infinite layer structure section, wherein the perovskite structure section consists of two first atomic layers and a second atomic layer sandwiched between the first layers, and wherein the infinite layer structure section consists of alternately arranged, third and fourth atomic layers. Each of the first layers consists of O and an element M.sup.1 selected from Ba, Sr and Ca and has an atomic ratio O/M.sup.1 of 1 or less, while the second layer consists of O and Cu and has an atomic ratio O/Cu of 2 or less. Each of the third layers consists of O and Cu and has an atomic ratio O/Cu of 2, while each of the fourth layers consists of an element M.sup.2 selected from Ba, Sr and Ca. A superconductor having a superconducting critical temperature of over 100 K. may be produced by heat treatment at 800.degree.-1,200.degree.C. under a super-high pressure of 20,000-80,000 atm.
公开/授权文献
- US4976056A Advertising or promotional item 公开/授权日:1990-12-11