| Records |
| Author |
Johnson, M. A.; Betz, A. L.; Townes, C. H. |
| Title |
10-μm Heterodyne Stellar Interferometer |
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Journal Article |
| Year |
1974 |
Publication |
Phys. Rev. Lett. |
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33 |
Issue |
27 |
Pages |
1617-1620 |
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American Physical Society |
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228 |
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| Author |
Shah, Jagdeep; Pinczuk, A.; Gossard, A. C.; Wiegmann, W. |
| Title |
Energy-loss rates for hot electrons and holes in GaAs quantum wells |
Type |
Journal Article |
| Year |
1985 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
54 |
Issue |
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Pages |
2045-2048 |
| Keywords |
2DEG, GaAs/AlGaAs, heat flow, electron-phonon, hole-phonon, carrier-phonon, interactions |
| Abstract |
We report the first direct determination of carrier-energy-loss rates in a semiconductor. These measurements provide fundamental insight into carrier-phonon interactions in semiconductors. Unexpectedly large differences are found in the energy-loss rates for electrons and holes in GaAs/AlGaAs quantum wells. This large difference results from an anomalously low electron-energy-loss rate, which we attribute to the presence of nonequilibrium optical phonons rather than the effects of reduced dimensionality or dynamic screening. |
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633 |
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| Author |
Shah, Nayana; Pekker, David; Goldbart, Paul M. |
| Title |
Inherent stochasticity of superconductor-resistor switching behavior in nanowires |
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Journal Article |
| Year |
2008 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
101 |
Issue |
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Pages |
207001(1 to 4) |
| Keywords |
superconducting nanowires, phase-slip, self-heating effect, temperature profile |
| Abstract |
We study the stochastic dynamics of superconductive-resistive switching in hysteretic current-biased superconducting nanowires undergoing phase-slip fluctuations. We evaluate the mean switching time using the master-equation formalism, and hence obtain the distribution of switching currents. We find that as the temperature is reduced this distribution initially broadens; only at lower temperatures does it show the narrowing with cooling naively expected for phase slips that are thermally activated. We also find that although several phase-slip events are generally necessary to induce switching, there is an experimentally accessible regime of temperatures and currents for which just one single phase-slip event is sufficient to induce switching, via the local heating it causes. |
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no |
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919 |
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| Author |
Usadel, Klaus D. |
| Title |
Generalized diffusion equation for superconducting alloys |
Type |
Journal Article |
| Year |
1970 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
| Volume |
25 |
Issue |
8 |
Pages |
507 |
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Eilenberger's transportlike equations for a superconductor of type II can be simplified very much in the dirty limit. In this limit a diffusionlike equation is derived which is the generalization of the de Gennes-Maki theory for dirty superconductors to arbitrary values of the order parameter. |
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920 |
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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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921 |
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