The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Feb. 14, 2013
Kabushiki Kaisha Toshiba, Tokyo, JP;
Takeshi Araki, Tokyo, JP;
Mariko Hayashi, Chiba-ken, JP;
Ko Yamada, Kanagawa-ken, JP;
Hiroyuki Fuke, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an oxide superconductor includes an oriented superconductor layer and an oxide layer. The oriented superconductor layer contains fluorine at 2.0×10-5.0×10atoms/cc and carbon at 1.0×10-5.0×10atoms/cc. The superconductor layer contains in 90% or more a portion oriented along c-axis with an in-plane orientation degree (Δφ) of 10 degrees or less, and contains a LnBaCuOsuperconductor material (Ln being yttrium or a lanthanoid except cerium, praseodymium, promethium, and lutetium). The oxide layer is provided in contact with a lower surface of the superconductor layer and oriented with an in-plane orientation degree (Δφ) of 10 degrees or less with respect to one crystal axis of the superconductor layer. Area of a portion of the lower surface of the superconductor layer in contact with the oxide layer is 0.3 or less of area of a region directly below the superconductor layer.