| Records |
| Author |
Parker, W. H. |
| Title |
Modified heating theory of nonequilibrium superconductors |
Type |
Journal Article |
| Year |
1975 |
Publication |
Phys. Rev. B |
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| Volume |
12 |
Issue |
9 |
Pages |
3667-3672 |
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American Physical Society |
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| Call Number |
mht_Parker_1975 |
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221 |
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| Author |
Heslinga, D. R.; Shafranjuk, S. E.; van Kempen, H.; Klapwijk, T. M. |
| Title |
Observation of double-gap-edge Andreev reflection at Si/Nb interfaces by point-contact spectroscopy |
Type |
Journal Article |
| Year |
1994 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
49 |
Issue |
15 |
Pages |
10484-10494 |
| Keywords |
Nb, Si, Nb-Si, Nb/Si, Si/Nb, Andreev reflection, point-contact spectroscopy |
| Abstract |
Andreev reflection point-contact spectroscopy is performed on a bilayer consisting of 50-nm degenerately doped Si backed with Nb. Due to the short mean free path both injection into and transport across the Si layer are diffusive, in contrast to the ballistic conditions prevailing in clean metal layers. Nevertheless a large Andreev signal is observed in the point-contact characteristics, not reduced by elastic scattering in the Si layer or by interface scattering, but only limited by the transmission coefficient of the metal-semiconductor point contact. Two peaks in the Andreev reflection probability are visible, marking the values of the superconducting energy gap at the interface on the Nb and Si sides. This interpretation is supported by a method of solving the Bogolubov equations analytically using a simplified expression for the variation of the order parameter close to the interface. This observation enables a comparison with theoretical predictions of the gap discontinuity in the proximity effect. It is found that the widely used de Gennes model does not agree with the experimental data. |
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American Physical Society |
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no |
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1005 |
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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 |
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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 |
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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no |
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307 |
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| Author |
Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. |
| Title |
Optical control of photon tunneling through an array of nanometer-scale cylindrical channels |
Type |
Journal Article |
| Year |
2002 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
| Volume |
66 |
Issue |
20 |
Pages |
205414_1-205414_5 |
| Keywords |
optical mixing |
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1098-0121 |
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no |
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499 |
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