1/3-shot-noise suppression in diffusive nanowires

Henny, M.; Oberholzer, S.; Strunk, Christoph; Schönenberger, Christian

doi:10.1103/physrevb.59.2871

Cited by 153 publications

(175 citation statements)

References 32 publications

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“…Eqs. (81) and (82) [55] and independently by Melnikov [56], who investigated not a single resonant tunneling structure but an ensemble of systems. Imagine an ensemble of quasi-one-dimensional double-barrier systems, in which some parameter is random.…”

Section: Resonant Tunnel Barriersmentioning

confidence: 99%

“…11. [81] on three different samples. The lower solid line is 1/3-suppression, the upper line is the hot-electron result F = √ 3/4 (see Section VI).…”

Section: Metallic Diffusive Wiresmentioning

confidence: 99%

“…20 In long wires, interaction effects play a role; this is addressed in Section VI. measurement of the 1/3 noise suppression was performed by Henny et al [81]. Special care was taken to avoid electron heating effects by attaching very large reservoirs to the wire.…”

Section: Metallic Diffusive Wiresmentioning

confidence: 99%

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Shot noise in mesoscopic conductors

2000

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Theoretical and experimental work concerned with dynamic fluctuations has developed into a very active and fascinating subfield of mesoscopic physics. We present a review of this development focusing on shot noise in small electric conductors. Shot noise is a consequence of the quantization of charge. It can be used to obtain information on a system which is not available through conductance measurements. In particular, shot noise experiments can determine the charge and statistics of the quasiparticles relevant for transport, and reveal information on the potential profile and internal energy scales of mesoscopic systems. Shot noise is generally more sensitive to the effects of electron-electron interactions than the average conductance. We present a discussion based on the conceptually transparent scattering approach and on the classical Langevin and BoltzmannLangevin methods; in addition a discussion of results which cannot be obtained by these methods is provided. We conclude the review by pointing out a number of unsolved problems and an outlook on the likely future development of the field.

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Section: Resonant Tunnel Barriersmentioning

confidence: 99%

“…11. [81] on three different samples. The lower solid line is 1/3-suppression, the upper line is the hot-electron result F = √ 3/4 (see Section VI).…”

Section: Metallic Diffusive Wiresmentioning

confidence: 99%

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Shot noise in mesoscopic conductors

2000

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“…4 This heating effect will become less important at large bias because the shot noise will eventually take over fully and, thus, the value of F saturates. Other mechanisms that can change the measured Fano factor include electron-electron interactions [24,5], incoherent scattering [9], and thermal gradients in the metallic lead due to heat diffusion [25]. However, the first two processes should lead to F = 1/3 as V bias → 0 and higher F in the high bias regime (i.e.…”

Section: Results On Shot Noisementioning

confidence: 99%

“…Fano factor of 1 3 has been predicted [6,7] and experimentally verified in the case of diffusive systems [25]. Disordered multiwalled carbon nanotubes, on the other hand, have shown a broad spectrum of values [27].…”

Section: Effect Of Disordermentioning

confidence: 99%

Shot noise measurements in graphene

Danneau

Craciun

et al. 2009

Solid State Communications

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a b s t r a c tWe have investigated shot noise at microwave frequencies in wide-aspect-ratio graphene sheets in the temperature range of 4.2-30 K. We find that for our short (L < 300 nm) graphene samples with width over length ratio W /L > 3, the Fano factor F reaches a maximum F ∼ 1/3 at the Dirac point and that it decreases substantially with increasing charge density. Our results agree with the theoretical prediction that electrical transport at the Dirac point is governed by evanescent electronic states.

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Electron quantum optics in ballistic chiral conductors

et al. 2013

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The edge channels of the quantum Hall effect provide one dimensional chiral and ballistic wires along which electrons can be guided in an optics-like setup. Electronic propagation can then be analyzed using concepts and tools derived from optics. After a brief review of electron optics experiments performed using stationary current sources which continuously emit electrons in the conductor, this paper focuses on triggered sources, which can generate on-demand a single particle state. It first outlines the electron optics formalism and its analogies and differences with photon optics and then turns to the presentation of single electron emitters and their characterization through the measurements of the average electrical current and its correlations. This is followed by a discussion of electron quantum optics experiments in the Hanbury-Brown and Twiss geometry where two-particle interferences occur. Finally, Coulomb interactions effects and their influence on single electron states are considered.

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1/3-shot-noise suppression in diffusive nanowires

Cited by 153 publications

References 32 publications

Shot noise in mesoscopic conductors

Shot noise in mesoscopic conductors

Shot noise measurements in graphene

Electron quantum optics in ballistic chiral conductors

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