Observation of negative absolute resistance in a Josephson junction

Nagel J, Speer D, Gaber T, Sterck A, Eichhorn R, Reimann P, Ilin K, Siegel M, Koelle D, Kleiner R (2008)
PHYSICAL REVIEW LETTERS 100(21).

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We experimentally demonstrate the occurrence of negative absolute resistance (NAR) up to about -1 Omega in response to an externally applied dc current for a shunted Nb-Al/AlOx-Nb Josephson junction, exposed to a microwave current at frequencies in the GHz range. The realization (or not) of NAR depends crucially on the amplitude of the applied microwave current. Theoretically, the system is described by means of the resistively and capacitively shunted junction model in terms of a moderately damped, classical Brownian particle dynamics in a one-dimensional potential. We find excellent agreement of the experimental results with numerical simulations of the model.
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Nagel J, Speer D, Gaber T, et al. Observation of negative absolute resistance in a Josephson junction. PHYSICAL REVIEW LETTERS. 2008;100(21).
Nagel, J., Speer, D., Gaber, T., Sterck, A., Eichhorn, R., Reimann, P., Ilin, K., et al. (2008). Observation of negative absolute resistance in a Josephson junction. PHYSICAL REVIEW LETTERS, 100(21).
Nagel, J., Speer, D., Gaber, T., Sterck, A., Eichhorn, R., Reimann, P., Ilin, K., Siegel, M., Koelle, D., and Kleiner, R. (2008). Observation of negative absolute resistance in a Josephson junction. PHYSICAL REVIEW LETTERS 100.
Nagel, J., et al., 2008. Observation of negative absolute resistance in a Josephson junction. PHYSICAL REVIEW LETTERS, 100(21).
J. Nagel, et al., “Observation of negative absolute resistance in a Josephson junction”, PHYSICAL REVIEW LETTERS, vol. 100, 2008.
Nagel, J., Speer, D., Gaber, T., Sterck, A., Eichhorn, R., Reimann, P., Ilin, K., Siegel, M., Koelle, D., Kleiner, R.: Observation of negative absolute resistance in a Josephson junction. PHYSICAL REVIEW LETTERS. 100, (2008).
Nagel, J., Speer, D., Gaber, T., Sterck, A., Eichhorn, R., Reimann, Peter, Ilin, K., Siegel, M., Koelle, D., and Kleiner, R. “Observation of negative absolute resistance in a Josephson junction”. PHYSICAL REVIEW LETTERS 100.21 (2008).
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Data provided by Europe PubMed Central.

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Speer, EPL (Europhysics Letters) 79(1), 2007
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