Kabushiki Kaisha Toshiba

International Superconductivity Technology Center

Other

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Hitachi Cable, Inc.

Mitsubishi Jidosha Engineering Kabushiki Kaisha

Chubu Electric Power Company, Inc.

Toshiba Industrial Products Manufacturing Corporation

Takeshi Araki

Mariko Hayashi

Izumi Hirabayashi

Hiroyuki Fuke

Nao Kobayashi

Koichi Nakao

Takeshi Yamaguchi

Takayuki Tsukamoto

Kohichi Kubo

Akihiro Goto

Koichi Kubo

Hirofumi Inoue

Yuichi Nakamura

Hideaki Shoji

Masanori Arata

Jyunichi Aizawa

Katsuya Yamagiwa

Yuh Shiohara

Teruo Izumi

Motoyasu Mochizuki

Yoshikazu Nakano

Masashi Okabe

Yutaka Yamada

Koji Yamazaki

Ko Yamada

Kazuki Kubo

Masakatsu Matsubara

Takashi Hanai

Takanori Sone

Yasuo Hirano

Hirotaka Ishii

Munehisa Takeda

Takako Takei

Yasuhiro Iijima

Hiroshi Amano

Hiroyuki Teramoto

Hiroshi Fuji

Hideo Ikeda

Kenji Tasaki

Noriaki Matsunaga

Takemi Muroga

Yukihiko Kazao

Hiroaki Tatsumi

Nobutake Aikura

Tatsuya Akashi

Masanori Ohashi

Taku Kusunoki

Takayuki Hanaki

Takanobu Toritani

Masahiko Yamashiki

Kenji Ohtsu

Ryota Yasui

Satoru Hara

Tomoaki Nishiyama

Akito Kondou

Toshiharu Niwa

Tetsuji Honjo

Kaoru Takeda

Yoshihiro Obata

Yoshihiro Tani

An oxide superconductor of an embodiment includes an oxide superconducting layer including a first superconducting region containing barium, copper, and a first rare earth element, having a continuous perovskite structure, and extending in a first direction, a second superconducting region containing barium, copper, and a second rare earth element, having a continuous perovskite structure, and extending in the first direction, and a non-superconducting region disposed between the first and the second superconducting region, containing praseodymium, barium, copper, and a third rare earth element, a ratio of the number of atoms of the praseodymium to a sum of the number of atoms of the third rare earth element and the number of atoms of the praseodymium which is 20% or more, having a continuous perovskite structure continuous with the perovskite structure of the first superconducting region and the perovskite structure of the second superconducting region, and extending in the first direction.

Oxide superconductor and method for manufacturing same

An oxide superconductor of an embodiment includes an oxide superconducting layer including at least one superconducting region containing barium (Ba), copper (Cu) and a first rare earth element, having a continuous perovskite structure, and having a size of 100 nm×100 nm×100 nm or more, and a non-superconducting region in contact with the at least one superconducting region, containing praseodymium (Pr), barium (Ba), copper (Cu), and a second rare earth element, having a ratio of a number of atoms of the praseodymium (Pr) to a sum of a number of atoms of the second rare earth element and the number of atoms of the praseodymium (Pr) being 20% or more, having a continuous perovskite structure continuous with the continuous perovskite structure of the superconducting region, and having a size of 100 nm×100 nm×100 nm or more.

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&#xd7;10atoms/cc or more and 5.0&#xd7;10atoms/cc or less; and carbon in an amount of 1.0&#xd7;10atoms/cc or more and 5.0&#xd7;10atoms/cc or less.

Oxide superconductor and method for manufacturing the same

An oxide superconductor includes: REBaCuO(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 (M, M, and M), and the three types of metallic elements are any element of the RE element group selected in order. In an oxide system satisfying R(M)&#x2264;20 mol % and R(M)&#x2265;60 mol % and R(M)&#x2264;20 mol %, R(M) being an average metallic element ratio of Min M+M+M, SD(Ms)&#x3e;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(M) and R(M), SD(Ms) being a standard deviation/average value of a concentration of Ms.

An oxide superconductor of an embodiment includes an oxide superconductor layer having a continuous Perovskite structure containing rare earth elements, barium (Ba), and copper (Cu). The rare earth elements contain a first element which is praseodymium (Pr), at least one second element selected from the group consisting of neodymium (Nd), samarium (Sm), europium (Eu), and gadolinium (Gd), at least one third element selected from the group consisting of yttrium (Y), terbium (Tb), dysprosium (Dy), and holmium (Ho), and at least one fourth element selected from the group consisting of erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu).

An oxide superconductor of an embodiment includes an oxide superconductor layer having a continuous Perovskite structure including rare earth elements, barium (Ba), and copper (Cu). The rare earth elements include a first element which is praseodymium, at least one second element selected from the group consisting of neodymium, samarium, europium, and gadolinium, at least one third element selected from the group consisting of yttrium, terbium, dysprosium, and holmium, and at least one fourth element selected from the group consisting of erbium, thulium, ytterbium, and lutetium. When the number of atoms of the first element is N(PA), the number of atoms of the second element is N(SA), and the number of atoms of the fourth element is N(CA), 1.5&#xd7;(N(PA)+N(SA))&#x2264;N(CA) or 2&#xd7;(N(CA)&#x2212;N(PA))&#x2264;N(SA) is satisfied.

According to an embodiment, 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 REAREBBaCuO. 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 first surface-side region includes a first region having an orientation property, and a second region.

Superconductor and method for manufacturing same

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 is 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&#xd7;10atoms/cc or more and 5.0&#xd7;10atoms/cc or less; and carbon in an amount of 1.0&#xd7;10atoms/cc or more and 5.0&#xd7;10atoms/cc or less.

An oxide superconductor includes: REBaCuO(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)&#x2264;20 mol % and R(M2)&#x2265;60 mol % and R(M3)&#x2264;20 mol %, R(M1) being an average metallic element ratio of M1 in M1+M2+M3, SD(Ms)&#x3e;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.

A superconducting coil of an embodiment includes a superconducting wire including an oxide superconductor layer. The oxide superconductor layer has a continuous Perovskite structure including rare earth elements, barium (Ba), and copper (Cu). The rare earth elements include a first element which is praseodymium (Pr), at least one second element selected from the group consisting of neodymium (Nd), samarium (Sm), europium (Eu), and gadolinium (Gd), at least one third element selected from the group consisting of yttrium (Y), terbium (Tb), dysprosium (Dy), and holmium (Ho), and at least one fourth element selected from the group consisting of erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu).

Superconducting coil and superconducting device

According to an embodiment, 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 REAREBBaCuO. 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 first surface-side region includes a first region having an orientation property, and a second region.

A support structure for a front wiper device for a vehicle having an annular pivot cap which surrounds, under a deck garnish, a periphery of a pivot on which a base end portion of a wiper arm is supported is provided. The pivot cap includes a bottom plate section that is in an annular shape surrounding the periphery of the pivot, and is extended to a vehicle front side, and a flange section extending upward from an edge portion of the bottom plate section. The flange section is opened at a vehicle front side, and is provided with an opening. In a region at a vehicle rear side and at an electric motor side, of the bottom plate section, a protrusion that protrudes upward from a region at a side opposite to the electric motor is included.

Support structure for front wiper device for vehicle

A semiconductor device includes, an alloy layer sandwiched between a first Ag layer formed on a mounting board or circuit board and a second Ag layer formed on a semiconductor element, wherein the alloy layer contains an intermetallic compound of AgSn formed by Ag components of the first Ag layer and the second Ag layer and Sn, and wherein a plurality of wires containing Ag are arranged extended from an outside-facing periphery of the alloy layer.

Semiconductor device and method of fabricating same

Growing community of inventors

Tokyo, Japan

Takeshi Araki