Lancaster EPrints

Image of local density of states fluctuations in disordered metals in the differential conductance of tunneling via a resonant impurity level

Falko, Vladimir (1997) Image of local density of states fluctuations in disordered metals in the differential conductance of tunneling via a resonant impurity level. Physical Review B, 56 (3). pp. 1049-1052. ISSN 1098-0121

[img]
Preview
PDF (PhysRevB.56.1049) - Published Version
Download (122Kb) | Preview

    Abstract

    Differential conductance of the resonant-tunneling structure with a single impurity level studied in the current plateau regime undergoes fluctuations around a zero average manifesting the energy dependence of the local density of states in a disordered electrode. Although the rms value of dI/dV depends on disorder and barrier transparencies, it is almost independent of temperature and, as a function of bias voltage, has a correlation function scaled by the intrinsic width of the resonance, which can be regarded as a tool to measure this quantity beyond the main differential-conductance peak. The analysis is extended to the regime of classically high magnetic fields where both the amplitude and correlation magnetic field are expected to increase.

    Item Type: Article
    Journal or Publication Title: Physical Review B
    Additional Information: © 1997 The American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 57067
    Deposited By: ep_importer_pure
    Deposited On: 05 Sep 2012 17:33
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jan 2014 05:30
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/57067

    Actions (login required)

    View Item