Giant higher harmonic generation in mesoscopic metal wires and rings interrupted by tunnel junctions
نویسندگان
چکیده
Higher harmonic generation in mesoscopic metal wires and loops interrupted by tunnel junctions is explored experimentally. When the sample is biased with a sinusoidal varying current, we observe giant higher harmonics in the conductance fluctuations and the Aharonov-Bohm oscillations. We demonstrate that the harmonic content is directly related to the probability for an electron to return to the barrier after tunneling. The full set of experimental data is in quantitative agreement with theoretical predictions. @S0163-1829~98!01915-8#
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تاریخ انتشار 1998