Shot Noise in Mesoscopic Transport Through Localised States
phys. stat. sol. (b) 241, 26 (2004) We show that shot noise can be used for studies of hopping and resonant tunnelling between localised electron states. In hopping via several states, shot noise is seen to be suppressed compared with its classical Poisson value $S_I=2eI$ ($I$ is the average current...
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Zusammenfassung: | phys. stat. sol. (b) 241, 26 (2004) We show that shot noise can be used for studies of hopping and resonant
tunnelling between localised electron states. In hopping via several states,
shot noise is seen to be suppressed compared with its classical Poisson value
$S_I=2eI$ ($I$ is the average current) and the suppression depends on the
distribution of the barriers between the localised states. In resonant
tunnelling through a single impurity an enhancement of shot noise is observed.
It has been established, both theoretically and experimentally, that a
considerable increase of noise occurs due to Coulomb interaction between two
resonant tunnelling channels. |
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DOI: | 10.48550/arxiv.cond-mat/0402145 |