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1. 发明授权

EP3350849B1 OXIDE SUPERCONDUCTOR AND METHOD FOR MANUFACTURING THE SAME 有权
公开(公告)号：EP3350849B1
公开(公告)日：2019-07-03
申请号：EP16704714.1
申请日：2016-01-29
申请人： Kabushiki Kaisha Toshiba
发明人： ARAKI, Takeshi , HAYASHI, Mariko , FUKE, Hiroyuki
IPC分类号： H01L39/12 , H01L39/24 , C04B35/45 , C04B35/624

2. 发明公开

EP2255388A1 INFORMATION RECORDING DEVICE AND INFORMATION RECORDING/REPRODUCTION SYSTEM INCLUDING THE SAME 审中-公开
标题翻译：信息记录装置和信息记录/重放系统，
公开(公告)号：EP2255388A1
公开(公告)日：2010-12-01
申请号：EP09718835.3
申请日：2009-03-10
申请人： Kabushiki Kaisha Toshiba
发明人： ARAKI, Takeshi , TSUKAMOTO, Takayuki , YAMAGUCHI, Takeshi
IPC分类号： H01L27/10 , H01L45/00 , H01L49/00
CPC分类号： H01L45/08 , H01L45/1233 , H01L45/146 , H01L45/1625
摘要： This disclosure provides an information recording device for use in a non-volatile information recording/reproduction system having a high recording density, the device including a resistive material having less phase separation or the like during switching. This disclosure also provides an information recording/reproduction system including the device. This disclosure provides an information recording device including: a pair of electrodes; and a recording layer between the electrodes, the recording layer recording information by its resistance change, the recording layer including at least one of (a) M3Oz and (b) AxM3—x0z as a main component, in (a) and (b), z being a value representing oxygen deficiency from z=4.5, and in (b), x satisfying 0.00

3. 发明公开

EP3421429A1 OXIDE SUPERCONDUCTOR AND METHOD FOR PRODUCING SAME 审中-公开
公开(公告)号：EP3421429A1
公开(公告)日：2019-01-02
申请号：EP16891558.5
申请日：2016-07-27
申请人： Kabushiki Kaisha Toshiba
发明人： HAYASHI, Mariko , ARAKI, Takeshi , FUKE, Hiroyuki , KOBAYASHI, Nao
IPC分类号： C01G1/00 , C01G3/00 , H01B12/06 , H01B13/00
摘要： An oxide superconductor according to an embodiment includes an oxide superconducting layer includes a single crystal having a continuous perovskite structure containing at least one rare earth element selected from the group consisting of yttrium, lanthanum, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, barium, and copper, containing praseodymium in a part of the site of the rare earth element in the perovskite structure, and having a molar ratio of praseodymium of 0.00000001 or more and 0.2 or less with respect to the sum of the at least one rare earth element and praseodymium; fluorine in an amount of 2.0 × 10 15 atoms/cc or more and 5.0 × 10 19 atoms/cc or less; and carbon in an amount of 1.0 × 10 17 atoms/cc or more and 5.0 × 10 20 atoms/cc or less.

4. 发明公开

EP3350849A1 OXIDE SUPERCONDUCTOR AND METHOD FOR MANUFACTURING THE SAME 有权
公开(公告)号：EP3350849A1
公开(公告)日：2018-07-25
申请号：EP16704714.1
申请日：2016-01-29
申请人： Kabushiki Kaisha Toshiba
发明人： ARAKI, Takeshi , HAYASHI, Mariko , FUKE, Hiroyuki
IPC分类号： H01L39/12 , H01L39/24 , C04B35/45 , C04B35/624
CPC分类号： H01L39/126 , C04B35/4504 , C04B35/4508 , C04B35/62218 , C04B35/624 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3281 , C04B2235/449 , C04B2235/721 , C04B2235/724 , C04B2235/768 , H01L39/148 , H01L39/2425 , H01L39/2451
摘要： An oxide superconductor includes: REBa2Cu3O7-x (RE being one element selected from a “RE element group” of Pr, Nd, Sm, Eu, Gd, Y, Tb, Dy, Ho, Er, Tm, Yb, and Lu). The RE includes at least three, types of metallic elements (M1, M2, and M3), and the three types of metallic elements are any element of the RE element group selected in order. In an oxide system satisfying R(1)≦20 mol % and R(M2)≧60 mol % and R(M3)≦20 mol %, R(M1) being an average metallic element ratio of M1 in M1+M2+M3, SD(Ms)>0.15 is satisfied at a position at 50% of an average film thickness of a cross section including the c-axis, Ms being the metallic element of not larger of R(M1) and R(M3), SD(Ms) being a standard deviation/average value of a concentration of Ms.

5. 发明公开

EP3276637A1 SUPERCONDUCTOR AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：超导体及其制造方法
公开(公告)号：EP3276637A1
公开(公告)日：2018-01-31
申请号：EP15886333.2
申请日：2015-03-24
申请人： Kabushiki Kaisha Toshiba
发明人： ARAKI, Takeshi , FUKE, Hiroyuki
IPC分类号： H01B12/06
CPC分类号： H01F6/06 , H01B12/06 , H01F1/0571 , H01L39/126 , H01L39/2425 , H01L39/2451 , H01L39/2483
摘要： According to an embodiment of the invention, a superconductor includes a base member, and a superconducting layer provided on the base member. The superconducting layer has a first surface on the base member side, and a second surface on the side opposite to the first surface. The lattice constant of the base member substantially matches the lattice constant of the superconducting layer. The superconducting layer includes REA 1- x REB x Ba 2 Cu 3 O 7- z . The x is not less than 0.01 and not more than 0.40. The z is not less than 0.02 and not more than 0.20. The REA includes at least one of Y, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu. The REB includes at least one of Nd or Sm. The superconducting layer includes a first surface-side region including a portion of the first surface. The thickness of the first surface-side region along a first direction is 70% of the average thickness of the superconducting layer along the first direction, where the first direction is from the first surface toward the second surface. The length of the first surface-side region along a second direction parallel to the first surface is 2 micrometers. The first surface-side region includes a first region having an orientation property, and a second region. The orientation property in the second region is lower than the orientation property in the first region. The length of the second region along the second direction is not more than 0.15 times the length of the first surface-side region.
摘要翻译：根据本发明的一个实施例，超导体包括基底构件和设置在基底构件上的超导层。超导层具有在基底构件侧的第一表面以及在与第一表面相反的一侧的第二表面。基体部件的晶格常数与超导层的晶格常数基本匹配。超导层包括REA1-xREBxBa2Cu3O7-z。 x不小于0.01且不大于0.40。 z不小于0.02且不大于0.20。 REA包括Y，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb或Lu中的至少一种。 REB至少包含Nd或Sm中的一种。超导层包括包含第一表面的一部分的第一表面侧区域。沿着第一方向的第一表面侧区域的厚度是超导层沿着第一方向的平均厚度的70％，其中第一方向是从第一表面朝向第二表面。沿平行于第一表面的第二方向的第一表面侧区域的长度为2微米。第一表面侧区域包括具有取向性的第一区域和第二区域。第二区域中的取向属性低于第一区域中的取向属性。沿第二方向的第二区域的长度不大于第一表面侧区域的长度的0.15倍。

6. 发明公开

EP1482521A1 SUPER ELECTROCONDUCTIVE LAYER AND METHOD FOR PREPARATION THEREOF 有权
标题翻译： SUPRA导电层及其制造方法
公开(公告)号：EP1482521A1
公开(公告)日：2004-12-01
申请号：EP03743613.6
申请日：2003-03-05
申请人： Kabushiki Kaisha Toshiba , Chubu Electric Power Co., Inc. , International Superconductivity Technology Center
发明人： ARAKI, Takeshi , NIWA, Toshiharu , MUROGA, Takemi , YAMADA, Yutaka , HIRABAYASHI, Izumi
IPC分类号： H01B12/06 , H01B13/00 , C01G3/00 , H01L39/02 , H01L39/24
CPC分类号： H01L39/2425
摘要： There is provided is a method of manufacturing a superconductor layer, including preparing a coating solution by dissolving trifluoroacetates of at least one metal selected from the group consisting of yttrium and lanthanoids, barium, and copper in a solvent, coating a main surface of a substrate with the coating solution to form a coating film, subjecting the coating film to a calcining process in an atmosphere containing oxygen, and subjecting the coating film after the calcining process to a firing process in an atmosphere containing water vapor at a temperature higher than that at the calcining process. The calcining process is carried out such that the coating film after the calcining process and before the firing process have an average CuO particle diameter equal to or less than 25 nm.

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