Dynamic Magneto-Conductance Fluctuations and Oscillations in Mesoscopic Wires and Rings

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dc.creatorLiu, D. Z.
dc.creatorHu, Ben Yu-Kuang
dc.creatorStafford, C. A.
dc.creatorSarma, S. Das
dc.date1994-05-24
dc.date.accessioned2026-07-07T06:31:44Z
dc.date.available2026-07-07T06:31:44Z
dc.descriptionUsing a finite-frequency recursive Green's function technique, we calculate the dynamic magneto-conductance fluctuations and oscillations in disordered mesoscopic normal metal systems, incorporating inter-particle Coulomb interactions within a self-consistent potential method. In a disordered metal wire, we observe ergodic behavior in the dynamic conductance fluctuations. At low $ω$, the real part of the conductance fluctuations is essentially given by the dc universal conductance fluctuations while the imaginary part increases linearly from zero, but for $ω$ greater than the Thouless energy and temperature, the fluctuations decrease as $ω^{-1/2}$. Similar frequency-dependent behavior is found for the Aharonov-Bohm oscillations in a metal ring. However, the Al'tshuler-Aronov-Spivak oscillations, which predominate at high temperatures or in rings with many channels, are strongly suppressed at high frequencies, leading to interesting crossover effects in the $ω$-dependence of the magneto-conductance oscillations.
dc.description4 pages, REVTeX 3.0, 5 figures(ps file available upon request), #phd09
dc.identifierhttps://arxiv.org/abs/cond-mat/9405065
dc.identifierhttp://arxiv.org/abs/cond-mat/9405065
dc.identifierPhys. Rev. B 50, R5799 (1994)
dc.identifierdoi:10.1103/PhysRevB.50.5799
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98696
dc.subjectCondensed Matter
dc.titleDynamic Magneto-Conductance Fluctuations and Oscillations in Mesoscopic Wires and Rings
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