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| Author |
Sergeev, A.; Mitin, V. |
| Title |
Electron-phonon interaction in disordered conductors: Static and vibrating scattering potentials |
Type |
Journal Article |
| Year |
2000 |
Publication |
Phys. Rev. B. |
Abbreviated Journal |
Phys. Rev. B. |
| Volume |
61 |
Issue |
9 |
Pages  |
6041-6047 |
| Keywords |
disordered conductors, scattering potential, electron-phonon interaction |
| Abstract |
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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| Author |
Perrin, N.; Vanneste, C. |
| Title |
Response of superconducting films to a periodic optical irradiation |
Type |
Journal Article |
| Year |
1983 |
Publication |
Phys. Rev. B |
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| Volume |
28 |
Issue |
9 |
Pages |
5150-5159 |
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sc_resp_Perrin_1983 |
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233 |
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| Author |
Parker, W. H. |
| Title |
Modified heating theory of nonequilibrium superconductors |
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Journal Article |
| Year |
1975 |
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Phys. Rev. B |
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12 |
Issue |
9 |
Pages |
3667-3672 |
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American Physical Society |
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mht_Parker_1975 |
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221 |
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Romijn, J.; Klapwijk, T. M.; Renne, M. J.; Mooij, J. E. |
| Title |
Critical pair-breaking current in superconducting aluminum strips far below Tc |
Type |
Journal Article |
| Year |
1982 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
26 |
Issue |
7 |
Pages |
3648-3655 |
| Keywords |
superconducting nanowire |
| Abstract |
Critical currents of narrow, thin aluminum strips have been measured as a function of temperature. For the smallest samples uniformity of the current density is obtained over a large temperature range. Hence the intrinsic limit on the currentcarrying capacity of the superconductor was measured outside the Ginzburg-Landau -regime. The experimental values are compared with recent theoretical predictions by Kupriyanov and Lukichev. An approximate method of solving their equations is given, the results of which agree with the exact solution to within 1%. Experimental data are in excellent agreement with theoretical predictions. The absolute values agree if one assumes a Ïl value of 4×10–16 Ωm2 with vF=1.3×106 m/s. This value for Ïl is the same as that found from measurements of the anomalous skin effect but differs from values extracted from size-effect-limited resistivity. |
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Recommended by Klapwijk |
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925 |
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| Author |
Pothier, H.; Guéron, S.; Birge, Norman O.; Esteve, D.; Devoret, M. H. |
| Title |
Energy distribution function of quasiparticles in mesoscopic wires |
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Journal Article |
| Year |
1997 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
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| Volume |
79 |
Issue |
18 |
Pages |
3490-3493 |
| Keywords |
tunnel probe, metallic nanowire, diffusive wire, diffusive nanowire |
| Abstract |
We have measured with a tunnel probe the energy distribution function of Landau quasiparticles in metallic diffusive wires connected to two reservoir electrodes, with an applied bias voltage. The distribution function in the middle of a 1.5-μm-long wire resembles the half sum of the Fermi distributions of the reservoirs. The distribution functions in 5-μm-long wires are more rounded, due to interactions between quasiparticles during the longer diffusion time across the wire. From the scaling of the data with the bias voltage, we find that the scattering rate between two quasiparticles varies as <c9><203a>–2, where <c9><203a> is the energy transferred. |
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