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    Method of preparing Tl-containing oxide superconducting thin film
    5.
    发明授权
    Method of preparing Tl-containing oxide superconducting thin film 失效
    制备含钛氧化物超导薄膜的方法

    公开(公告)号：US5376627A

    公开(公告)日：1994-12-27

    申请号：US26915

    申请日：1993-03-05

    申请人： Yasuko Torii ,  Katsuya Hasegawa ,  Hiromi Takei

    发明人： Yasuko Torii ,  Katsuya Hasegawa ,  Hiromi Takei

    IPC分类号： H01L39/24 ,  B05D5/12

    CPC分类号： H01L39/2464 ,  Y10S505/73 ,  Y10S505/731 ,  Y10S505/732 ,  Y10S505/742

    摘要： Provided herein is a method of efficiently preparing a thin film having a higher critical temperature as to an oxide superconducting material containing Tl. A thin film of an oxide containing Tl is formed and then heat treated at a temperature of about 850.degree. to 950.degree. C. for a short time, and thereafter further heat treated at a temperature, which is lower than the preceding heat treatment temperature, of at least about 750.degree. C. for a long time. The thin film is heat treated in an atmosphere having an oxygen partial pressure of not more than about 0.1 atm. In formation of a Tl superconducting thin film, on the other hand, a 1212 phase layer is reacted with an amorphous Ca--Cu--O layer to form a 1223 phase layer, or a layer containing volatile metal elements (Tl, Bi and Pb, for example) and oxygen is reacted with another layer containing other elements than the volatile metal elements to form a superconducting film having a high critical temperature.

    摘要翻译： 本文提供了一种有效地制备具有相对于含有T1的氧化物超导材料具有更高临界温度的薄膜的方法。 形成含有Tl的氧化物的薄膜，然后在约850〜950℃的温度下短时间进行热处理，然后在低于前述热处理温度的温度下进一步热处理， 至少约750℃。 在氧分压不大于约0.1atm的气氛中对薄膜进行热处理。 另一方面，在形成T1超导薄膜时，使1212相层与非晶Ca-Cu-O层反应形成1223相层，或含有挥发性金属元素（Tl，Bi，Pb， 例如），并且氧与包含除挥发性金属元素之外的其它元素的另一层反应以形成具有高临界温度的超导膜。

    Oxide-type superconducting material
    6.
    发明授权
    Oxide-type superconducting material 失效
    氧化物型超导材料

    公开(公告)号：US5401713A

    公开(公告)日：1995-03-28

    申请号：US947887

    申请日：1992-09-18

    申请人： Yasuko Torii

    发明人： Yasuko Torii

    IPC分类号： C04B35/45 ,  H01L39/12

    CPC分类号： C04B35/4517 ,  C04B35/4512 ,  C04B35/4521 ,  C04B35/4525 ,  H01L39/126 ,  Y10S505/782 ,  Y10S505/783

    摘要： A new superconducting material composed mainly of compound oxide represented by the general formula:Tl.sub.h Ca.sub.j .alpha..sub.k(1-y) .beta..sub.ky Cu.sub.m O.sub.nwherein".alpha." represents Ba or Sr;".beta." represents any one of elements selected from a group comprising Na, K, Rb and Cs;"h", "j", "k", "m" and "n" are the atomic ratios each satisfies the following range:1.ltoreq.h.ltoreq.3, 1.ltoreq.j.ltoreq.3, 1.ltoreq.k.ltoreq.3,2.ltoreq.m.ltoreq.4 and 5.ltoreq.n.ltoreq.15 and"y" is a number which satisfies a range of 0.05.ltoreq.y.ltoreq.0.8.

    摘要翻译： 一种新型的超导材料，主要由以下通式表示的复合氧化物组成：TlhCaj alpha k（1-y）beta kyCumOn，其中“α”表示Ba或Sr; “β”表示选自包括Na，K，Rb和Cs的组中的任何一种元素; “h”，“j”，“k”，“m”和“n”是各自满足以下范围的原子比：1