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| Author |
Boogaard, G.R.; Verbruggen, A.H.; Belzig, W.; Klapwijk T.M. |
| Title |
Resistance of superconducting nanowires connected to normal-metal leads |
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Journal Article |
| Year |
2004 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
69 |
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Pages |
220503(R)(1-4) |
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| Abstract |
We study experimentally the low temperature resistance of superconducting nanowires connected to normal metal reservoirs. Wefind that a substantial fraction of the nanowires is resistive, down to the lowest tempera-ture measured, indicative of an intrinsic boundary resistance due to the Andreev-conversion of normal current to supercurrent. The results are successfully analyzed in terms of the kinetic equations for diffusive superconductors. |
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RPLAB @ atomics90 @ |
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960 |
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Kozorezov, A. G.; Lambert, C.; Marsili, F.; Stevens, M. J.; Verma, V. B.; Stern, J. A.; Horansky, R.; Dyer, S.; Duff, S.; Pappas, D. P.; Lita, A.; Shaw, M. D.; Mirin, R. P.; Sae Woo Nam |
| Title |
Quasiparticle recombination in hotspots in superconducting current-carrying nanowires |
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Journal Article |
| Year |
2015 |
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Phys. Rev. B |
| Volume |
92 |
Issue |
6 |
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We describe a kinetic model of recombination of non-equilibrium quasiparticles generated by single photon absorption in superconducting current-carrying nanowires. The model is developed to interpret two-photon detection experiments in which a single photon does not possess sufficient energy for breaking superconductivity at a fixed low bias current. We show that quasiparticle self- recombination in relaxing hotspot dominates diffusion expansion effects and explains the observed strong bias current, wavelength and temperature dependencies of hotspot relaxation in tungsten silicide superconducting nanowire single-photon detectors. |
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RPLAB @ alex_kazakov @ |
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1003 |
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Sergeev, A.; Mitin, V. |
| Title |
Electron-phonon interaction in disordered conductors: Static and vibrating scattering potentials |
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Journal Article |
| Year |
2000 |
Publication |
Phys. Rev. B. |
Abbreviated Journal |
Phys. Rev. B. |
| Volume |
61 |
Issue |
9 |
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6041-6047 |
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disordered conductors, scattering potential, electron-phonon interaction |
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Employing the Keldysh diagram technique, we calculate the electron-phonon energy relaxation rate in a conductor with the vibrating and static δ-correlated random electron-scattering potentials. If the scattering potential is completely dragged by phonons, this model yields the Schmid’s result for the inelastic electron-scattering rate τ−1e−ph. At low temperatures the effective interaction decreases due to disorder, and τ−1e−ph∝T4l (l is the electron mean-free path). In the presense of the static potential, quantum interference of numerous scattering processes drastically changes the effective electron-phonon interaction. In particular, at low temperatures the interaction increases, and τ−1e−ph∝T2/l. Along with an enhancement of the interaction, which is observed in disordered metallic films and semiconducting structures at low temperatures, the suggested model allows us to explain the strong sensitivity of the electron relaxation rate to the microscopic quality of a particular film. |
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0163-1829 |
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307 |
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Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. |
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Optical control of photon tunneling through an array of nanometer-scale cylindrical channels |
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Journal Article |
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2002 |
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Phys. Rev. B |
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Phys. Rev. B |
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66 |
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20 |
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205414_1-205414_5 |
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optical mixing |
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1098-0121 |
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499 |
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Su, M. Y.; Carter, S. G.; Sherwin, M. S. |
| Title |
Strong-field terahertz optical mixing in excitons |
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Journal Article |
| Year |
2003 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
67 |
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12 |
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optical mixing |
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