Amplitude of Aharonov-Bohm oscillations in mesoscopic metallic rings as a function of the DC bias voltage

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We report measurements of the amplitude of the Aharonov-Bohm oscillations in a mesoscopic diffusive gold ring as a function of the DC bias voltage V. The amplitude of the h/e oscillations increases with V once the Thouless energy Ec and thermal energy are exceeded, and decreases at higher values of V. The increase of the amplitude is interpreted in terms of a superposition of the statistically independent contributions of eV/Ec energy intervals, whereas its decrease at high V could be attributed to enhanced inelastic scattering processes.
5 pages, corrected typos, to be published in Fizika A (Zagreb)

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/16067

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0002326
 http://arxiv.org/abs/cond-mat/0002326

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arXiv