Presentation | 1998/7/28 High Performance SQUID Magnetometer Utilizing Bicrystal Junctions with 30 Degree Misorientation Angles Keiji Enpuku, Tadashi Minotani, Fumio Shiraishi, Atsushi Kandori, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | High performance SQUID magnetometer operating at T=77 K is fabricated by utilizing bicrystal junctions with 30 degrees misorientation angles.With this technology, Josephson junctions with critical current I_o=10~20 μA and resistance R_s≈10 Ω can be obtained rether reproducibly. As a result, performances of the SQUID, such as voltage modulation depth and the flux noise, are greatly improved. Moreover, the 1/f noise component of the flux noise can be much decreased with the so-called ac-bias method. The directly coupled magnetometer is also fabricated on 1cm x 1cm substrate, whose field noise is B_n=20~30fT/Hz^<1/2> for f>5 Hz and B_n<70 fT/Hz<1/2> at f=1 Hz. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | High T_c SQUID / 30-degree bicrystal junction / flux noise / magnetometer |
Paper # | SCE98-12 |
Date of Issue |
Conference Information | |
Committee | SCE |
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Conference Date | 1998/7/28(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Superconductive Electronics (SCE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | High Performance SQUID Magnetometer Utilizing Bicrystal Junctions with 30 Degree Misorientation Angles |
Sub Title (in English) | |
Keyword(1) | High T_c SQUID |
Keyword(2) | 30-degree bicrystal junction |
Keyword(3) | flux noise |
Keyword(4) | magnetometer |
1st Author's Name | Keiji Enpuku |
1st Author's Affiliation | Department of Electronic Device Engineering, ISEE, Kyusyu University() |
2nd Author's Name | Tadashi Minotani |
2nd Author's Affiliation | Department of Electronic Device Engineering, ISEE, Kyusyu University |
3rd Author's Name | Fumio Shiraishi |
3rd Author's Affiliation | Department of Electronic Device Engineering, ISEE, Kyusyu University |
4th Author's Name | Atsushi Kandori |
4th Author's Affiliation | Department of Electronic Device Engineering, ISEE, Kyusyu University |
Date | 1998/7/28 |
Paper # | SCE98-12 |
Volume (vol) | vol.98 |
Number (no) | 222 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |