公开(公告)号：US5296455A

公开(公告)日：1994-03-22

申请号：US883228

申请日：1992-05-07

申请人： Keizo Harada ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu

发明人： Keizo Harada ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu

IPC分类号： C04B35/45 ,  C23C14/08 ,  C23C16/40 ,  H01L39/12 ,  H01L39/24 ,  C23C14/24 ,  C23C14/34

CPC分类号： C04B35/4521 ,  C23C14/087 ,  C23C16/408 ,  H01L39/126 ,  H01L39/2435 ,  Y10S505/731 ,  Y10S505/732 ,  Y10S505/742 ,  Y10S505/782

摘要： A compound oxide superconductor represented by the general formula:Bi.sub.4+d (Sr.sub.1-x, Ca.sub.x).sub.m Cu.sub.n O.sub.p+yin which,"d" is an amount of excess bismuth and satisfies a range of 0

摘要翻译： 由通式Bi4 + d（Sr1-x，Cax）mCunOp + y表示的复合氧化物超导体，其中“d”是过量铋的量，满足0

公开(公告)号：US5252543A

公开(公告)日：1993-10-12

申请号：US648964

申请日：1991-01-31

申请人： Saburo Tanaka ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Saburo Tanaka ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： H01L39/14 ,  H01L39/24 ,  B32B9/00

CPC分类号： H01L39/143 ,  H01L39/2435 ,  Y10S428/93 ,  Y10S505/701 ,  Y10S505/704

摘要： Improvement in a superconducting thin film of compound oxide represented by the formula: LnBa.sub.2 Cu.sub.3 O.sub.7- .delta. (Ln is lanthanide) or (La.sub.1-x .alpha..sub.x).sub.2 CuO.sub.4 (.alpha. is Ba or Sr) deposited on a substrate or core made of MgO, SrTiO.sub.3 or ZrO.sub.2 by physical vapor deposition technique, the surface roughness R.sub.max (datum length=1,000 .mu.m) of the superconducting thin film being less than 0.2 .mu.m.

摘要翻译： 由式：LnBa2Cu3O7-δ（Ln是镧系元素）或（La1-xαx）2CuO4（α是Ba或Sr）表示的复合氧化物超导薄膜的改进，沉积在由MgO，SrTiO 3或 ZrO2，通过物理气相沉积技术，超导薄膜的表面粗糙度Rmax（基准长度=1000μm）小于0.2μm。

公开(公告)号：US5250510A

公开(公告)日：1993-10-05

申请号：US899025

申请日：1992-06-15

申请人： Hideo Itozaki ,  Saburo Tanaka ,  Nobuhiko Fujita ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Hideo Itozaki ,  Saburo Tanaka ,  Nobuhiko Fujita ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： C04B35/45 ,  H01L39/12 ,  H01L39/24 ,  C01F11/02 ,  C01F11/00 ,  C01G3/02

CPC分类号： C04B35/4512 ,  H01L39/126 ,  H01L39/2435 ,  Y10S505/776 ,  Y10S505/783

摘要： A now superconducting material comprising a compound oxide represented by the general formula:(Ba, Ca).sub.x (.alpha., Dy).sub.1-x Tl.sub.y Cu.sub.1-y O.sub.3-zwherein".alpha." represents Y or La;the atomic ratio of Ca to Ba is between 1% and 90%;the atomic ratio of Dy to .alpha. is between 1% and 90%;x, y and z are within the ranges of 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, and 0.ltoreq.z

摘要翻译： 包含由通式（Ba，Ca）x（α，Dy）1-xTlyCu1-yO3-z表示的复合氧化物的现在的超导材料，其中“α”表示Y或La; Ca与Ba的原子比在1％〜90％之间; Dy与α的原子比在1％〜90％之间; x，y和z分别在0≤x≤1,0≤y≤1,0,0≤z≤1的范围内; （Ba，Ca）和（α，Dy）的表达意味着各元素以预定比例占据晶体中的预定位置。

公开(公告)号：US5247189A

公开(公告)日：1993-09-21

申请号：US845752

申请日：1992-03-02

申请人： Saburo Tanaka ,  Hideo Itozaki ,  Shuji Yazu

发明人： Saburo Tanaka ,  Hideo Itozaki ,  Shuji Yazu

IPC分类号： H01L39/24

CPC分类号： H01L39/2496 ,  H01L39/2467

摘要： A tunnel junction type superconducting device includes a pair of superconductor electrodes formed of compound oxide superconductor material, and a metal layer of a high electric conductivity formed between the pair of superconductor electrodes so as to maintain the pair of superconductor electrodes separate from each other. The pair of superconductor electrodes is separated from each other by a distance within a range of 3 nm to 70 nm by action of the metal layer.

摘要翻译： 隧道结型超导装置包括由复合氧化物超导体材料形成的一对超导体电极和形成在该对超导体电极之间的高电导率的金属层，以便保持该对超导体电极彼此分离。 一对超导体电极通过金属层的作用在3nm〜70nm的范围内彼此分开。

公开(公告)号：US5236894A

公开(公告)日：1993-08-17

申请号：US950922

申请日：1992-09-24

申请人： Saburo Tanaka ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Saburo Tanaka ,  Hideo Itozaki ,  Kenjiro Higaki ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： C23C14/08 ,  H01L39/24

CPC分类号： C23C14/087 ,  H01L39/2435 ,  Y10S505/731 ,  Y10S505/816

摘要： A process for depositing a superconducting thin film composed mainly of compound oxide such as LnBa.sub.2 Cu.sub.3 O.sub.7-.delta. (Ln is lanthanide) or (La.sub.1-x .alpha..sub.x).sub.2 CuO.sub.4 (.alpha. is Ba or Sr) on a substrate such as MgO, SrTiO.sub.3 or silicon by sputtering technique, characterized in that a negative bias is applied to the substrate during the sputtering stage without heating the substrate.

摘要翻译： 将诸如LnBa2Cu3O7-δ（Ln是镧系元素）或（La1-xa x）2CuO4（α是Ba或Sr）的复合氧化物主要由MgO，SrTiO3或硅基底沉积的超导薄膜的方法由 溅射技术，其特征在于在溅射阶段期间对基板施加负偏压，而不加热基板。

公开(公告)号：US5221660A

公开(公告)日：1993-06-22

申请号：US856824

申请日：1992-03-25

申请人： Hideo Itozaki ,  Keizo Harada ,  Naoji Fujimori ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Hideo Itozaki ,  Keizo Harada ,  Naoji Fujimori ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： H01L39/14 ,  H01L39/24

CPC分类号： H01L39/143 ,  H01L39/2458 ,  Y10S428/93 ,  Y10S505/701 ,  Y10S505/706 ,  Y10T428/12528 ,  Y10T428/12611

摘要： A semiconductor substrate having a silicon substrate and a superconducting thin film layer composed of compound oxide such as Ln.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-.delta. (Ln is lanthanide) and stratified on the silicon substrate, characterized in that an intermediate semiconductor layer composed of compound semiconductor material such as GaAs is interposed between the silicon substrate and the superconducting thin film layer.

摘要翻译： 具有硅衬底的半导体衬底和由诸如Ln1Ba2Cu3O7-δ（Ln是镧系元素）的复合氧化物构成的层叠在硅衬底上的超导薄膜层，其特征在于由诸如GaAs的化合物半导体材料构成的中间半导体层是 介于硅衬底和超导薄膜层之间。

公开(公告)号：US5206214A

公开(公告)日：1993-04-27

申请号：US833576

申请日：1992-02-10

申请人： Naoji Fujimori ,  Keizo Harada ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Naoji Fujimori ,  Keizo Harada ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： C30B23/02 ,  H01L39/24

CPC分类号： H01L39/2435 ,  C30B23/02 ,  C30B29/22 ,  C30B29/225 ,  Y10S505/731

摘要： A method for preparing a thin film of superconductor on a substrate by sputtering. A target prepared from an oxide containing Ba, Y, and Cu in atomic ratios Cu/Y of 2.5 to 3.5 and Ba/Y of 1.8 to 2.2 is employed to form by sputtering a superconducting thin film on a substrate at a temperature of 600.degree. to 800.degree. C. in an atmosphere having total gas pressure of 1.times.10.sup.-2 to 5.times.10.sup.-2 Torr. and containing Ar and O.sub.2 with an O.sub.2 content of 5 to 80 vol. %. The thin film thus formed is subjected to heat treatment at a temperature of 600.degree. to 930.degree. C. for 1 to 30 hours. The thin film after the heat treatment is cooled at a rate not more than 4.degree. C./min. The film forming surface of the substrate is chosen from the (100) surface or the (110) surface of a single crystal substrate which is lattice-matched with the (100) surface or the (110) surface of crystalline Y.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-n, where n represents a number in the range 0.ltoreq.n

摘要翻译： 一种通过溅射在衬底上制备超导体薄膜的方法。 通过将Cu / Y的原子比为2.5〜3.5，Ba / Y为1.8〜2.2的Ba，Y，Cu的氧化物制成的靶用于在600℃的温度下在基板上溅射超导薄膜 至800℃，总气体压力为1×10 -2至5×10 -2乇。 并含有O含量为5至80体积％的Ar和O 2。 ％。 将这样形成的薄膜在600〜930℃的温度下进行1〜30小时的热处理。 热处理后的薄膜以不高于4℃/分钟的速度冷却。 基板的成膜表面选自与晶体Y1Ba2Cu3O7-n的（100）表面或（110）表面晶格匹配的单晶衬底的（100）表面或（110）表面，其中 n表示0

公开(公告)号：US5157016A

公开(公告)日：1992-10-20

申请号：US729888

申请日：1991-07-11

申请人： Takeshi Yamaguchi ,  Hideo Itozaki ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Takeshi Yamaguchi ,  Hideo Itozaki ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： C04B35/45 ,  C04B35/65 ,  H01L39/12 ,  H01L39/24

CPC分类号： H01L39/2419 ,  C04B35/4504 ,  C04B35/4512 ,  C04B35/4521 ,  C04B35/65 ,  H01L39/126 ,  Y10S505/704 ,  Y10S505/736

摘要： A method for producing a superconducting article. An alloy consisting of metal elements, such as Y, Ba and Cu which are constituent elements of a superconducting compound oxide to be produced is oxidized so that a surface of the alloy is converted to the superconducting compound oxide such as YBa.sub.2 Cu.sub.3 O.sub.7-.delta..

公开(公告)号：US5140004A

公开(公告)日：1992-08-18

申请号：US717020

申请日：1991-06-18

申请人： Saburo Tanaka ,  Hideo Itozaki ,  Takeshi Yamaguchi ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Saburo Tanaka ,  Hideo Itozaki ,  Takeshi Yamaguchi ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： C04B35/45 ,  C04B35/622 ,  H01L39/14 ,  H01L39/24

CPC分类号： C04B35/62254 ,  C04B35/4508 ,  H01L39/143 ,  H01L39/248 ,  Y10S428/93 ,  Y10S505/704 ,  Y10S505/731

摘要： A method of preparing a high Tc superconducting fiber is disclosed, which comprises drawing into fiber form a core filament of a crystalline oxide, continuously depositing on the heated core filament a high Tc superconducting thin film and then depositing a protective layer on the outer surface of the high Tc superconducting thin film.

摘要翻译： 公开了制备高Tc超导纤维的方法，其包括将纤维形成为结晶氧化物的芯丝，在加热的芯丝上连续沉积高Tc超导薄膜，然后在保护层的外表面上沉积保护层 高Tc超导薄膜。

公开(公告)号：US5089465A

公开(公告)日：1992-02-18

申请号：US537866

申请日：1990-06-14

申请人： Kenichiro Sibata ,  Nobuyuki Sasaki ,  Shuji Yazu ,  Tetsuji Jodai

发明人： Kenichiro Sibata ,  Nobuyuki Sasaki ,  Shuji Yazu ,  Tetsuji Jodai

IPC分类号： B32B18/00 ,  C04B35/45 ,  H01L39/24

CPC分类号： H01L39/2429 ,  C04B35/45 ,  Y10S505/741

摘要： A process for producing a superconducting thick film including steps comprising subjecting a powder mixture of oxides or carbonates of Ba, Y and Cu each having an average particle size of less than 5 .mu.m to preliminary sintering, pulverizing the preliminary sintered mass into a powder having an average particle size of less than 10 .mu.m, and then admixing the pulverized powder with an organic vehicle to prepare a paste which is applied on a substrate and is sintered finally. The preliminary sintering is carried out at a temperature ranging from 700.degree. to 950.degree. C., while the final sintering is carried out at a temperature ranging from 800.degree. C. to 1,000.degree. C.