Quasiparticle and phonon propagation in bulk, superconducting lead

Narayanamurti, V. ; Dynes, R. C. ; Hu, P. ; Smith, H. ; Brinkman, W. F. (1978) Quasiparticle and phonon propagation in bulk, superconducting lead Physical Review B, 18 (11). pp. 6041-6052. ISSN 0163-1829

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Official URL: http://link.aps.org/doi/10.1103/PhysRevB.18.6041

Related URL: http://dx.doi.org/10.1103/PhysRevB.18.6041


We present a detailed account of our work on the propagation of quasiparticles and phonons in bulk, superconducting lead. Time-of-flight techniques combined with tunnel junction detection (for quasiparticles) and bolometer detection (for phonons) are used. A transition from quasiparticle diffusion (and ballistic phonon propagation) to diffusion in the combined gas of quasiparticles and phonons is observed as the temperature is increased. We give a theoretical description of the pulse propagation characteristics in the diffusive regimes. The theoretical line-shape fits to the data yield a measure of the quasiparticle recombination time and their number decay time as a function of temperature.

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ID Code:30662
Deposited On:23 Dec 2010 12:54
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