Title:
SQUID MAGNETIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2010/122733
Kind Code:
A1
Abstract:
Provided is a directly coupled high-temperature superconducting SQUID magnetic sensor which has a thin film single layer structure and stably operates with a high sensitivity even in a magnetic field by suppressing a magnetic flux trap or jump generated in the sensor in the magnetic field and preventing the performance of the SQUID magnetic sensor from deteriorating.
The superconducting quantum interference device magnetic sensor is provided with: a bicrystal substrate (1) having a bicrystal grain boundary coupling section; pickup loops (7a-7d) formed of a first high-temperature superconducting thin film on the bicrystal substrate (1); and a SQUID ring (3), which is formed of the first high-temperature superconducting thin film directly connected to the pickup loops (7a-7d), on the bicrystal grain boundary coupling section. A plurality of the pickup loops (7a-7d) are provided at positions not overlapping the bicrystal grain boundary coupling sections with a bicrystal grain boundary line (2) at the center.
Inventors:
HATSUKADE, Yoshimi (1-1 Hibarigaoka, Tempaku-cho, Toyohashi-sh, Aichi 80, 〒4418580, JP)
廿日出好 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ 国立大学法人 豊橋技術科学大学内 Aichi, 〒4418580, JP)
TANAKA, Saburo (1-1 Hibarigaoka, Tempaku-cho, Toyohashi-sh, Aichi 80, 〒4418580, JP)
廿日出好 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ 国立大学法人 豊橋技術科学大学内 Aichi, 〒4418580, JP)
TANAKA, Saburo (1-1 Hibarigaoka, Tempaku-cho, Toyohashi-sh, Aichi 80, 〒4418580, JP)
Application Number:
JP2010/002665
Publication Date:
October 28, 2010
Filing Date:
April 13, 2010
Export Citation:
Assignee:
National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY (1-1 Hibarigaoka, Tempaku-cho Toyohashi-sh, Aichi 80, 〒4418580, JP)
国立大学法人 豊橋技術科学大学 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ Aichi, 〒4418580, JP)
HATSUKADE, Yoshimi (1-1 Hibarigaoka, Tempaku-cho, Toyohashi-sh, Aichi 80, 〒4418580, JP)
廿日出好 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ 国立大学法人 豊橋技術科学大学内 Aichi, 〒4418580, JP)
国立大学法人 豊橋技術科学大学 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ Aichi, 〒4418580, JP)
HATSUKADE, Yoshimi (1-1 Hibarigaoka, Tempaku-cho, Toyohashi-sh, Aichi 80, 〒4418580, JP)
廿日出好 (〒80 愛知県豊橋市天伯町雲雀ヶ丘１－１ 国立大学法人 豊橋技術科学大学内 Aichi, 〒4418580, JP)
International Classes:
G01R33/035; H01L39/22
Attorney, Agent or Firm:
SHIMIZU, Mamoru (Nichiyo Bldg, 11-12 Kanda-mitoshiro-cho, Chiyoda-k, Tokyo 53, 〒1010053, JP)
Previous Patent: WO/2010/122732
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