Technique for measuring the Cooper-pair velocity, density, and mass using Doppler splitting of the plasmon resonance in low-dimensional superconductor microstructures

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.50.4004· OSTI ID:6716320

Mishonov, T M ^[1]

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1. Theoretical Physics Department, Faculty of Physics, University of Sofia, 5 J. Boucher Blvd., 1126 Sofia (Bulgaria)

The creation of a Cooper-pair mass spectroscopy is suggested. The plasmons in low-dimensional superconductor structures (layers or wires in the dielectric background) are theoretically considered for this purpose. The Cooper-pair mass [ital m][sup *] (the parameter [ital m][sup *] in London electrodynamics) can be determined by measurements of the Doppler shift of the plasmon frequency when a direct current is applied through the superconductor. The plasmons with frequency [omega] lower than the superconducting gap 2[Delta] can be detected by the same far-infrared absorption technique and grating coupling used previously for investigation of two-dimensional plasmons in semiconductor microstructures and polaritons in condensed-matter physics.

• OSTI ID: 6716320
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 50:6; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
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COOPER PAIRS
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SUPERCONDUCTING FILMS
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EFFECTIVE MASS
PLASMONS
COPPER COMPOUNDS
ENERGY-LEVEL TRANSITIONS
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Cermets
& Refractories- Superconducting Properties- (1992-)