Falko, V I (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 1098-0121Full text not available from this repository.
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.
|Journal or Publication Title:||Physical review b|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||05 Sep 2012 17:33|
|Last Modified:||05 Sep 2012 17:33|
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