Shot Noise at 2D Hopping
نویسندگان
چکیده
منابع مشابه
Shot noise at hopping via two sites
Shot noise in mesoscopic structures has been the subject of thorough studies in the recent past. In particular, a theory of shot noise at tunneling of single electrons correlated due to Coulomb blockade effects has been well developed and verified experimentally. Recently, attempts have been made to extend this theory to hopping transport, which can be formally considered as a special case of c...
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We have carried out a preliminary analysis of shot noise at hopping, focusing on uniform one-dimensional ~1D! arrays of sites separated by N tunnel barriers. The results show that at low temperatures the low-frequency density of the shot noise varies from 1/N to 1 of the Schottky value, depending on the geometry, electron density, and Coulomb interaction strength. An interesting feature is v de...
متن کاملShot-noise suppression at two-dimensional hopping
We have used Monte Carlo simulation to calculate the shot-noise intensity SI(v) at ~two-dimensional! hopping using two models: a slanted lattice of localized sites with equal energies and a set of localized sites with random positions and energies. For wide samples we have found a similar dependence of the Fano factor F[SI(0)/2eI on the sample length L: F}L 2a where a50.8560.02 and a50.8560.07 ...
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We have used modern supercomputer facilities to carry out extensive Monte Carlo simulations of 2D hopping (at negligible Coulomb interaction) in conductors with the completely random distribution of localized sites in both space and energy, within a broad range of the applied electric field E and temperature T , both within and beyond the variable-range hopping region. The calculated properties...
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We have carried out numerical simulations of shot noise at two-dimensional (2D) hopping and in 2D arrays of single-electron islands with and without random background charges. Such key transport characteristics as the average (dc) current 〈I〉, the single-particle density of states and the current fluctuation spectrum, have been calculated within a broad range of the applied electric field E and...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2003
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsjs.72sa.149