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    Superconducting device having a single junction structure appropriate for integration
    2.
    发明授权
    Superconducting device having a single junction structure appropriate for integration 失效
    具有适于集成的单结结构的超导装置

    公开(公告)号：US5498881A

    公开(公告)日：1996-03-12

    申请号：US309188

    申请日：1994-09-20

    申请人： Manabu Fujimoto ,  Keiichi Yamaguchi ,  Youichi Enomoto ,  Tsutomu Mitsuzuka ,  Katsumi Suzuki

    发明人： Manabu Fujimoto ,  Keiichi Yamaguchi ,  Youichi Enomoto ,  Tsutomu Mitsuzuka ,  Katsumi Suzuki

    IPC分类号： B82B1/00 ,  H01L39/22 ,  H01L39/24 ,  H01L29/06 ,  H01B12/00

    CPC分类号： H01L39/225

    摘要： A superconducting device has a substrate and a superconducting film formed on the substrate. A surface of the substrate has a first surface portion of which a curvature is constant or changes continuously, a second surface portion of which a curvature is constant or changes continuously, and a third surface portion at which the first and second surface portions meet and at which the curvatures of the first and second surface portions become discontinuous. The superconducting film formed on the surface of said substrate has a grain boundary serving as a junction only in a portion corresponding to the third surface portion of the substrate.

    摘要翻译： 超导装置具有在基板上形成的基板和超导膜。 基板的表面具有曲率恒定或连续变化的第一表面部分，曲率恒定或连续变化的第二表面部分和第一和第二表面部分相遇的第三表面部分 第一和第二表面部分的曲率变得不连续。 形成在所述基板的表面上的超导膜仅在对应于基板的第三表面部分的部分中具有用作结的晶界。

    Josephson junction in a wiring pattern of a superconductor oxide
    5.
    发明授权
    Josephson junction in a wiring pattern of a superconductor oxide 失效
    约瑟夫逊结在超导体氧化物的布线图中

    公开(公告)号：US5534715A

    公开(公告)日：1996-07-09

    申请号：US148277

    申请日：1993-11-08

    申请人： Christian Neumann ,  Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    发明人： Christian Neumann ,  Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    IPC分类号： H01L39/22 ,  H01L39/24

    CPC分类号： H01L39/2496

    摘要： A Josephson junction is disclosed which includes a substrate of a single crystal having a substantially flat surface, a wiring pattern of an oxide superconductor formed on the flat surface of the substrate, and an altered region formed having a width of 300 nm or less and formed in the wiring pattern to intersect the wiring pattern, the crystal orientations of the wiring pattern on both sides of the altered region being equal to each other. The Josephson junction may be prepared by a process including the steps of: (a) coating a surface of a substrate of a single crystal with a normal metal to form a protecting layer over the surface of the substrate; (b) irradiating a predetermined portion of the protecting layer with a focused ion beam so that an irradiated portion is formed in the substrate; (c) removing the protecting layer from the substrate; and (d) forming a wiring pattern of an oxide superconductor on the surface of the substrate from which the protecting layer has been removed such that the wiring pattern crosses the irradiated portion of the substrate, thereby forming an altered portion in the wiring pattern at a position above the irradiated portion.

    摘要翻译： 公开了一种约瑟夫逊结，其包括具有基本上平坦的表面的单晶的衬底，形成在衬底的平坦表面上的氧化物超导体的布线图案和形成为具有300nm或更小的宽度的改变区域 在与布线图案相交的布线图案中，改变区域两侧的布线图案的晶体取向彼此相等。 约瑟夫逊结可以通过包括以下步骤的方法来制备：（a）用普通金属涂覆单晶的衬底的表面以在衬底的表面上形成保护层; （b）用聚焦离子束照射保护层的预定部分，使得在基板中形成照射部分; （c）从衬底上去除保护层; 以及（d）在已经去除了保护层的基板的表面上形成氧化物超导体的布线图案，使得布线图案与基板的照射部分交叉，从而在布线图案中形成改变部分 位于照射部分上方。

    Superconductor mixer and phase control method therefor
    7.
    发明授权
    Superconductor mixer and phase control method therefor 失效
    超导体混合器及其相位控制方法

    公开(公告)号：US5920811A

    公开(公告)日：1999-07-06

    申请号：US876244

    申请日：1997-06-16

    申请人： Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    发明人： Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    IPC分类号： H01L39/22 ,  H03D7/12 ,  H04B1/28 ,  H04B1/26

    CPC分类号： H04B1/28 ,  H03D7/005

    摘要： In a superconductor mixer, a non-linear element is provided on a substrate. The non-linear element comprises at least one Josephson junction connected in series. An antenna pattern of superconductor, an intermediate frequency output pattern of superconductor, and a bias current pattern of superconductor are connected to the non-linear element. A signal high frequency wave (RF) and a local reference frequency wave (LO) are received by the antenna pattern and then absorbed in the non-linear element to obtain an intermediate frequency (IF) signal. Then, with applying a current to the series connected Josephson junction in the non-linear element from the bias current pattern, the intermediate frequency (IF) signal as a frequency signal of a difference between the signal high frequency wave (RF) and the local reference frequency wave (LO) is output to the intermediate frequency output pattern. At this time, by varying the current supplied from the bias current pattern, a phase of the output intermediate frequency (IF) signal is varied.

    摘要翻译： 在超导体混合器中，在衬底上提供非线性元件。 非线性元件包括至少一个串联连接的约瑟夫逊结。 超导体的天线图案，超导体的中频输出图案和超导体的偏置电流图案被连接到非线性元件。 信号高频（RF）和局部参考频率波（LO）由天线方向接收，然后被吸收在非线性元件中以获得中频（IF）信号。 然后，通过从偏置电流模式向非线性元件中的串联连接的约瑟夫逊结施加电流，将中频（IF）信号作为信号高频波（RF）与本地 参考频率波（LO）被输出到中频输出模式。 此时，通过改变从偏置电流模式提供的电流，改变输出中频（IF）信号的相位。

    High frequency band high temperature superconductor mixer antenna which allows a superconductor feed line to be used in a low frequency region
    8.
    发明授权
    High frequency band high temperature superconductor mixer antenna which allows a superconductor feed line to be used in a low frequency region 失效
    高频高温超导体混频器天线，允许在低频区域使用超导体馈线

    公开(公告)号：US5812943A

    公开(公告)日：1998-09-22

    申请号：US706800

    申请日：1996-09-03

    申请人： Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    发明人： Katsumi Suzuki ,  Youichi Enomoto ,  Shoji Tanaka

    IPC分类号： H01L39/22 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q13/08 ,  H01Q21/00 ,  H04B1/18 ,  H04B1/26

    CPC分类号： H01Q1/247 ,  H01Q1/364

    摘要： The invention provides a wide frequency band high temperature superconductor mixer antenna which allows a superconductor feed line, which exhibits a high resistance loss in a high frequency region, to be used in a low frequency region with a low loss and which is provided with a same structure as a mixer which has a wide band twice or more the frequency of a millimeter or more wave while keeping a characteristic of a high integration array antenna, which makes most of the high integrity of superconductor feed lines. The wide frequency band high temperature superconductor mixer antenna includes one or a plurality of planar structure antenna patterns of the log-periodical type or the log-spiral type and a plurality of oxide superconductor thin film feed line wiring patterns formed on a same face of a main surface of a substrate, a central portion of each of the planar structure antenna patterns being formed from an oxide superconductor thin film on which a non-linear element part is provided.

    摘要翻译： 本发明提供了一种宽带高温超导体混频器天线，其允许在高频区域表现出高电阻损耗的超导体馈电线用于具有低损耗的低频区域并且具有相同的 结构作为混频器，其具有两倍或更多的毫米波或更多波的频率，同时保持高集成阵列天线的特性，这使得超导体馈线的大部分高度完整性。 宽频带高温超导体混频器天线包括对数周期型或对数螺旋型的一个或多个平面结构天线图案，以及形成在同一面上的多个氧化物超导体薄膜馈送线布线图案 基板的主表面，每个平面结构天线图案的中心部分由其上设置有非线性元件部分的氧化物超导薄膜形成。

    Oxide superconductor multilayered film and oxide superconductor josephson device
    9.
    发明授权
    Oxide superconductor multilayered film and oxide superconductor josephson device 失效
    氧化物超导体多层膜和氧化物超导体约瑟夫森装置

    公开(公告)号：US6011981A

    公开(公告)日：2000-01-04

    申请号：US814172

    申请日：1997-03-10

    申请人： Gustavo Alvarez ,  Furen Wang ,  Jian-Guo Wen ,  Naoki Koshizuka ,  Youichi Enomoto ,  Tadashi Utagawa ,  Shoji Tanaka

    发明人： Gustavo Alvarez ,  Furen Wang ,  Jian-Guo Wen ,  Naoki Koshizuka ,  Youichi Enomoto ,  Tadashi Utagawa ,  Shoji Tanaka

    IPC分类号： H01L39/12 ,  H01L39/22

    CPC分类号： H01L39/128 ,  H01L39/225 ,  Y10S505/702

    摘要： An oxide superconducting multilayered thin film structure having a laminated layer structure of oxide superconductor thin film layers and non-superconductor thin film layers constituted by a combination of material groups for making strain free interfaces among both thin film layers. For example, an oxide superconductor multilayered film constituted by a laminated layer structure where thin films of an oxide superconductor represented by the chemical formula of M'Ba.sub.2 Cu.sub.3 O.sub.7-.delta. (M'; a rare earth element of Nd, Sm, Eu or the like or an alloy of these, .delta.; oxygen depletion amount) and thin films of an oxide represented by the chemical formula of M*Ba.sub.2 Cu.sub.3 O.sub.7-.delta. (M*; an element of Pr, Sc or the like or an alloy of these, .delta.; oxygen depletion amount) are alternately stacked. The oxide thin films are thin films fabricated by a pulsed laser deposition process or a sputtering process. A Josephson device can be provided by using the multilayered film.

    摘要翻译： 一种氧化物超导多层薄膜结构，其具有由氧化物超导体薄膜层和非超导体薄膜层组成的层叠层结构，所述非超导薄膜层由两个薄膜层之间形成无应力界面的材料组合组成。 例如，由M'Ba2Cu3O7-δ（M'，Nd，Sm，Eu等的稀土元素表示的氧化物超导体的薄膜的层叠层结构构成的氧化物超导体多层膜， 这些的合金，δ;氧耗尽量）和由化学式M * Ba2Cu3O7-δ（M *; Pr，Sc等元素或它们的合金，δ;氧气）表示的氧化物薄膜 耗尽量）交替堆叠。 氧化物薄膜是通过脉冲激光沉积工艺或溅射工艺制造的薄膜。 可以通过使用多层膜来提供约瑟夫森装置。