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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 |
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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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Author |
Shah, Nayana; Pekker, David; Goldbart, Paul M. |
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Title |
Inherent stochasticity of superconductor-resistor switching behavior in nanowires |
Type |
Journal Article |
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Year |
2008 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
101 |
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207001(1 to 4) |
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Keywords |
superconducting nanowires, phase-slip, self-heating effect, temperature profile |
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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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919 |
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Boogaard, G.R.; Verbruggen, A.H.; Belzig, W.; Klapwijk T.M. |
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Title |
Resistance of superconducting nanowires connected to normal-metal leads |
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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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69 |
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220503(R)(1-4) |
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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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RPLAB @ atomics90 @ |
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960 |
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Peltonen, J. T.; Astafiev, O. V.; Korneeva, Y. P.; Voronov, B. M.; Korneev, A. A.; Charaev, I. M.; Semenov, A. V.; Golt'sman, G. N.; Ioffe, L. B.; Klapwijk, T. M.; Tsai, J. S. |
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Title |
Coherent flux tunneling through NbN nanowires |
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Journal Article |
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Year |
2013 |
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Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
88 |
Issue |
22 |
Pages |
220506 (1 to 5) |
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Keywords |
NbN nanowires |
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We demonstrate evidence of coherent magnetic flux tunneling through superconducting nanowires patterned in a thin highly disordered NbN film. The phenomenon is revealed as a superposition of flux states in a fully metallic superconducting loop with the nanowire acting as an effective tunnel barrier for the magnetic flux, and reproducibly observed in different wires. The flux superposition achieved in the fully metallic NbN rings proves the universality of the phenomenon previously reported for InOx. We perform microwave spectroscopy and study the tunneling amplitude as a function of the wire width, compare the experimental results with theories, and estimate the parameters for existing theoretical models. |
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1369 |
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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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Year |
2012 |
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Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
85 |
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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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