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Sergeev, A.; Mitin, V. |
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Title |
Electron-phonon interaction in disordered conductors: Static and vibrating scattering potentials |
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Journal Article |
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Year |
2000 |
Publication |
Phys. Rev. B. |
Abbreviated Journal |
Phys. Rev. B. |
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61 |
Issue |
9 |
Pages |
6041-6047 |
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Keywords |
disordered conductors, scattering potential, electron-phonon interaction |
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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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Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. |
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Title |
Optical control of photon tunneling through an array of nanometer-scale cylindrical channels |
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Journal Article |
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Year |
2002 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
66 |
Issue |
20 |
Pages |
205414_1-205414_5 |
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Keywords |
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. |
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Title |
Strong-field terahertz optical mixing in excitons |
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Journal Article |
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Year |
2003 |
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Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
67 |
Issue |
12 |
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optical mixing |
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1098-0121 |
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500 |
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Ciulin, V.; Carter, S. G.; Sherwin, M. S. |
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Terahertz optical mixing in biased GaAs single quantum wells |
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Journal Article |
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2004 |
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Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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70 |
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11 |
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115312-(1-6) |
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optical mixing |
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1098-0121 |
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501 |
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Vercruyssen, N.; Verhagen, T. G. A.; Flokstra, M. G.; Pekola, J. P.; Klapwijk, T. M. |
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Title |
Evanescent states and nonequilibrium in driven superconducting nanowires |
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Journal Article |
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Year |
2012 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
85 |
Issue |
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Pages |
224503(1-10) |
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Keywords |
Al HEB, Al superconducting nanowire, global state, bimodal state, quasiclassical kinetic equations, Usadel equation |
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Abstract |
We study the nonlinear response of current transport in a superconducting diffusive nanowire between normal reservoirs. We demonstrate theoretically and experimentally the existence of two different superconducting states appearing when the wire is driven out of equilibrium by an applied bias, called the global and bimodal superconducting states. The different states are identified by using two-probe measurements of the wire, and measurements of the local density of states with tunneling probes. The analysis is performed within the framework of the quasiclassical kinetic equations for diffusive superconductors. |
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898 |
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