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Author Parker, W. H.
Title Modified heating theory of nonequilibrium superconductors Type Journal Article
Year 1975 Publication Phys. Rev. B Abbreviated Journal
Volume 12 Issue 9 Pages 3667-3672
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Call Number mht_Parker_1975 Serial 221
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Author Perrin, N.; Vanneste, C.
Title Response of superconducting films to a periodic optical irradiation Type Journal Article
Year 1983 Publication Phys. Rev. B Abbreviated Journal
Volume 28 Issue 9 Pages 5150-5159
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Call Number sc_resp_Perrin_1983 Serial 233
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Author Bulaevskii, L. N.; Graf, M. J.; Batista, C. D.; Kogan, V. G.
Title Vortex-induced dissipation in narrow current-biased thin-film superconducting strips Type Journal Article
Year 2011 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B
Volume 83 Issue 14 Pages 9
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Abstract A vortex crossing a thin-film superconducting strip from one edge to the other, perpendicular to the bias current, is the dominant mechanism of dissipation for films of thickness d on the order of the coherence length ξ and of width w much narrower than the Pearl length Λâ‰<ab>wâ‰<ab>ξ. At high bias currents I*<I<Ic the heat released by the crossing of a single vortex suffices to create a belt-like normal-state region across the strip, resulting in a detectable voltage pulse. Here Ic is the critical current at which the energy barrier vanishes for a single vortex crossing. The belt forms along the vortex path and causes a transition of the entire strip into the normal state. We estimate I* to be roughly Ic/3. Furthermore, we argue that such “hot” vortex crossings are the origin of dark counts in photon detectors, which operate in the regime of metastable superconductivity at currents between I* and Ic. We estimate the rate of vortex crossings and compare it with recent experimental data for dark counts. For currents below I*, that is, in the stable superconducting but resistive regime, we estimate the amplitude and duration of voltage pulses induced by a single vortex crossing.
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Call Number RPLAB @ gujma @ Serial 688
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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 Type Journal Article
Year 2004 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B
Volume 69 Issue 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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Call Number RPLAB @ atomics90 @ Serial 960
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Author Ptitsina N. G.; Chulkova G. M.; Il'in K. S.; Sergeev A. V.; Pochinkov F. S.; Gershenzon E. M.
Title Superconductivity has been found in a number of new compounds between the non-superconducting transition elements and nonmetals such as Si, Ge, and Te. These findings have suggested possible criteria for superconductivity in both elements and compounds. Type Journal Article
Year 1997 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B
Volume 56 Issue 16 Pages
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Abstract The temperature dependence of the resistance of films of Al, Be, and NbC with small values of the electron mean free path L=1.5– 10 nm has been measured at 4.2–300 K. The resistance of all the films contains a T^2 contribution that is proportional to the residual resistance; this contribution has been attributed to the interference between the elastic electron scattering and the electron-phonon scattering. Fitting the data to the theory of the electron-phonon-impurity interference „M. Yu. Reiser and A. V. Sergeev, Zh. Eksp. Teor. Fiz. 92, 224 ~1987! @Sov. Phys. JETP 65, 1291 ~1987!#…, we obtain constants of nteraction of the electrons with transverse phonons, and estimate the contribution of this interaction to the electron dephasing rate in thin films of Au, Al, Be, Nb, and NbC. Our estimates are in a good agreement with the experimental data on the inelastic electronphonon scattering in these films. This indicates that the interaction of electrons with transverse phonons controls the electron-phonon relaxation rate in thin-metal films over a broad temperature range.
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Call Number RPLAB @ phisix @ Serial 988
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