TY - JOUR
T1 - Controllable superconducting nb long microbridge by low frequency, and its resonant characteristics
AU - Tsukada, Keiji
AU - Morooka, Toshimitsu
PY - 1992/11
Y1 - 1992/11
N2 - A Nb superconducting microbridge is fabricated, 40-fim long, less than 0.25-/un wide and OA-fim 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 7C is depressed, and as radiation power increases 7Cdecreases.This phenomenon is thought to be due to resonance of quasiparticles in the microbridge, and to resonance restricting the supercurrent.
AB - A Nb superconducting microbridge is fabricated, 40-fim long, less than 0.25-/un wide and OA-fim 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 7C is depressed, and as radiation power increases 7Cdecreases.This phenomenon is thought to be due to resonance of quasiparticles in the microbridge, and to resonance restricting the supercurrent.
KW - Low frequency resonance
KW - Microbridge
KW - Nb
KW - Quasiparticle excitation
KW - Submicron structure
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U2 - 10.1143/JJAP.31.L1536
DO - 10.1143/JJAP.31.L1536
M3 - Article
AN - SCOPUS:0026943136
SN - 0021-4922
VL - 31
SP - L1536-L1538
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 11
ER -