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1.
公开(公告)号:US5128315A
公开(公告)日:1992-07-07
申请号:US303933
申请日:1989-01-30
申请人: Masao Nakao , Ryohkan Yuasa , Hideki Kuwahara , Atsuo Mizukami
发明人: Masao Nakao , Ryohkan Yuasa , Hideki Kuwahara , Atsuo Mizukami
IPC分类号: H01L39/24
CPC分类号: H01L39/2435 , Y10S505/731 , Y10S505/782
摘要: The superconducting device according to the present invention is provided with a superconducting thin film of the Bi-Sr-Ca-Cu oxide deposited on a substrate thereof. Consequently, the device can be produced at a low cost because no rare earth elements are required.The superconducting thin film according to the present invention is formed by sputtering onto a substrate from a Bi-Sr-Ca-Cu oxide target, followed by annealing in an oxidizing atmosphere. In this way, it is possible to produce a superconducting thin film of the Bi-Sr-Ca-Cu oxide in a simple way by using an ordinary sputtering apparatus. In this method, it is preferable that a MgO substrate be used and the optimum annealing temperature is about 880.degree. C.
摘要翻译: 根据本发明的超导装置设置有沉积在其基板上的Bi-Sr-Ca-Cu氧化物的超导薄膜。 因此,由于不需要稀土元素,因此能够以低成本生产该装置。 根据本发明的超导薄膜通过从Bi-Sr-Ca-Cu氧化物靶溅射到衬底上,然后在氧化气氛中退火而形成。 以这种方式,可以通过使用普通的溅射装置以简单的方式制造Bi-Sr-Ca-Cu氧化物的超导薄膜。 在该方法中,优选使用MgO基板,最佳退火温度为约880℃。
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2.
公开(公告)号:US5141919A
公开(公告)日:1992-08-25
申请号:US325683
申请日:1989-03-20
申请人: Masao Nakao , Ryohkan Yuasa , Hideki Kuwahara , Atsuo Mizukami , Masaaki Nemoto
发明人: Masao Nakao , Ryohkan Yuasa , Hideki Kuwahara , Atsuo Mizukami , Masaaki Nemoto
CPC分类号: C23C14/5806 , C23C14/087 , C23C14/58 , C23C14/5853 , H01L39/2435 , Y10S428/93 , Y10S505/701 , Y10S505/702 , Y10S505/703 , Y10S505/704
摘要: The superconducting device according to the present invention is provided with a superconducting thin film of the Tl-Ba-Ca-Cu oxide deposited on a substrate thereof. Consequently, the device can be produced at a low cost because no rare earth elements are required.The superconducting thin film according to the present invention is formed by sputtering on substrate from a Tl-Ba-Ca-Cu oxide target by means of the sputtering method, followed by annealing in an oxidizing atmosphere. In this way, according to the present invention, it is possible to produce a superconducting thin film of the Tl-Ba-Ca-Cu oxide in a simple way by using an ordinary sputtering apparatus.
摘要翻译: 根据本发明的超导装置设置有沉积在其基板上的Tl-Ba-Ca-Cu氧化物的超导薄膜。 因此,由于不需要稀土元素,因此能够以低成本生产该装置。 根据本发明的超导薄膜通过溅射法从Ti-Ba-Ca-Cu氧化物靶在基板上溅射形成,然后在氧化气氛中进行退火。 以这种方式,根据本发明,通过使用普通的溅射装置,可以简单地制造Tl-Ba-Ca-Cu氧化物的超导薄膜。
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公开(公告)号:US5122503A
公开(公告)日:1992-06-16
申请号:US684463
申请日:1991-04-09
申请人: Masaru Yamano , Atsuo Mizukami , Masao Nakao , Shingo Terakado , Ryohkan Yuasa , Masaaki Nemoto , Hiromi Mukaida , Kazuaki Shikiti
发明人: Masaru Yamano , Atsuo Mizukami , Masao Nakao , Shingo Terakado , Ryohkan Yuasa , Masaaki Nemoto , Hiromi Mukaida , Kazuaki Shikiti
CPC分类号: H01L39/2419 , C04B35/4508 , Y10S505/725 , Y10S505/739 , Y10S505/742 , Y10S505/78
摘要: The present invention relates to a superconducting material that is, substances having compositions expressed by empirical formulae Y.sub.1-x Ba.sub.x CuO.sub.3, YBa.sub.2 Cu.sub.3 O.sub.7 and LnBa.sub.2 Cu.sub.3 O.sub.7 and critical temperatures of 90 K. or more, and to a method of producing the same in which for example Y.sub.2 O.sub.3, BaCO.sub.3 and CuO are blended at a mixture molar ratio of 1:2:6 and the resulting mixture is molded under pressure followed by slowly cooling in an oxidizing atmosphere.
摘要翻译: 本发明涉及一种超导材料,其是具有由经验式Y1-xBaxCuO3,YBa2Cu3O7和LnBa2Cu3O7表示的组成以及90K以上的临界温度的组成的物质及其制造方法,其中例如Y 2 O 3,BaCO 3 和CuO以1:2:6的混合摩尔比共混,并将所得混合物在压力下成型,然后在氧化气氛中缓慢冷却。
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公开(公告)号:US5880069A
公开(公告)日:1999-03-09
申请号:US190211
申请日:1994-02-01
申请人: Masao Nakao , Hiroaki Furukawa , Ryohkan Yuasa , Shuji Fujiwara
发明人: Masao Nakao , Hiroaki Furukawa , Ryohkan Yuasa , Shuji Fujiwara
CPC分类号: H01L39/2496 , C23C14/087 , C30B23/02 , C30B29/22 , C30B29/225 , Y10S505/702
摘要: A desired pattern is formed on a non-superconducting oxide film after the non-superconducting oxide film has been formed on a magnesia substrate. A superconducting oxide film is formed over the exposed parts of the substrate and the non-superconducting oxide film. The epitaxial orientation of the superconducting oxide film section on the non-superconducting oxide film is different from that of the superconducting oxide film section on the substrate. A tilt-boundary junction is produced at a boundary between the superconducting film sections which are different in epitaxial orientation from each other. Thus, a Josephson junction having a desired pattern can be obtained.
摘要翻译: 在非超导氧化膜已经形成在氧化镁基板上之后,在非超导氧化物膜上形成期望的图案。 在衬底和非超导氧化物膜的暴露部分上形成超导氧化物膜。 非超导氧化物膜上的超导氧化膜部分的外延取向与衬底上的超导氧化膜部分的外延取向不同。 在外延取向不同的超导膜部之间的边界处产生倾斜边界连接。 因此,可以获得具有期望图案的约瑟夫逊结。
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