Abstract
We describe the transition from sub-Poissonian to super-Poissonian values of the zero-temperature shot noise power of a resonant double barrier of macroscopic cross-section. This transition occurs for driving voltages which are sufficiently strong to bring the system near an instability threshold. It is shown that interactions in combination with the energy dependence of the tunneling rates dramatically affect the noise level in such a system. Interaction-induced fluctuations of the band bottom of the well contribute to the noise and lead to a new energy in the Fano factor. They can enhance the noise to super-Poissonian values in a voltage range preceding the instability threshold of the system. This mechanism is different from the super-Poissonian enhancement due to the large effective charge.
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References
For review, see Ya. M. Blanter and M. Büuttiker, Shot noise in mesoscopic conductors, Phys. Rep. 336 (2000) 1–166.
V. A. Khlus, Current and voltage fluctuations in microjunctions of normal and superconducting metal, Zh. Éksp. Teor. Fiz. 93 (1987) 2179–2190 [Sov. Phys. JETP 66 (1987) 1243-1249]; M. J. M. de Jong and C. W. J. Beenakker, Doubled shot-noise in disordered normal-metal superconductor junctions, Phys. Rev. B 49 (1994) 16070-16073; B. A. Muzykantskii and D. E. Khmelnitskii, Quantum shot-noise in a normal metal — superconductor point contact, Phys. Rev. B 50 (1994) 3982–3987; T. Martin, Wave packet approach to noise in N-S junctions, Phys. Lett. A 220 (1996) 137–142.
X. Jehl, M. Sanquer, R. Calemczuk, and D. Mailly, Detection of doubled shot noise in short normal-metal/superconductor junctions, Nature 405 (2000) 50–53; A. A. Kozhevnikov, R. J. Schoelkopf, L. E. Calvet, M. J. Rooks, and D. E. Prober, Shot noise measurements in diffusive normal metal-superconductor (N-S) junctions, J. Low. Temp. Phys. 118 (2000) 671–678.
S. S. Safonov, A. K. Savchenko, D. A. Bagrets, O. N. Jouravlev, Y. V. Nazarov, E. H. Linfield, and D. A. Ritchie, Enhanced shot noise in resonant tunneling via interacting localized states, Phys. Rev. Lett. (to be published).
Ya. M. Blanter and M. Büttiker, Transition from sub-Poissonian to super-Poissonian shot noise in resonant quantum wells, Phys. Rev. B 59 (1999) 10217–10226.
G. Iannaccone, G. Lombardi, M. Macucci, and B. Pellegrini, Enhanced shot noise in resonant tunneling: Theory and experiment, Phys. Rev. Lett. 80 (1998) 1054–1057.
V. V. Kuznetsov, E. E. Mendez, J. D. Bruno, and J. T. Pham, Shot noise enhancement in resonant-tunneling structures in a magnetic field, Phys. Rev. B 58 (1998) R10159–R10162.
W. Song, E. E. Mendez, V. Kuznetsov, and B. Nielsen, Appl. Phys. Lett. 82 (2003) 1568–1570.
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Blanter, Y.M. (2004). Super-Poissonian Noise in Nanostructures. In: Sikula, J., Levinshtein, M. (eds) Advanced Experimental Methods For Noise Research in Nanoscale Electronic Devices. NATO Science Series II: Mathematics, Physics and Chemistry, vol 151. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2170-4_7
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DOI: https://doi.org/10.1007/1-4020-2170-4_7
Publisher Name: Springer, Dordrecht
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