Controllable Supereonducting Nb Long Mierobridge by Low Frequency, and Its Resonant Characteristics
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概要
- 論文の詳細を見る
A Nb superconducting microbridge is fabricated, 40-μm long, less than 0.25-μm wide and 0.1-μm thick. Four-terminal measurement of the I-V characteristics reveals hysterisis in the I-V curve. The microbridge has an excess current over its current in its normal state. Frequency resonance appears over the range of a few hundred kiloherz by electromagnetic wave radiation. The I-V characteristics show that critical current I_c is depressed, and as radiation power increases I_c decreases. This phenomenon is thought to be due to resonance of quasiparticles in the microbridge, and to resonance restricting the supercurrent.
- 社団法人応用物理学会の論文
- 1992-11-15
著者
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Tsukada K
Natural Science And Technology Okayama University
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Tsukada Keiji
Graduate School Of Natural Sci. And Technol. Okayama Univ.
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Tsukada Keiji
Department Of Electrical And Electronic Engineering Okayama University
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Tsukada Keiji
Superconducting Sensor Laboratory
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Tsukada K
Superconducting Sensor Lab. Chiba
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MOROOKA Toshimitsu
Superconducting Sensor Laboratory
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