Issues »  Volume 38, Issue 8

Photon-Assisted Electronic Transport: Noise Performances of Tunnel Junction on the Base of a Superconductor at Low Temperatures

I. V. Boylo

Donetsk Institute for Physics and Engineering Named after O.O. Galkin, NAS of Ukraine, 46 Nauky Ave., UA-03680 Kyiv, Ukraine

Received: 04.08.2015; final version - 25.08.2016. Download: PDF

In the paper, numerical calculations of both the photon-assisted shot-noise power and the Fano factor for the mesoscopic normal metal—insulator— superconductor structures are performed. The temperature effect on the value of photon-assisted current fluctuations in a tunnel junction is studied. Modelling of the nonequilibrium current fluctuations demonstrates an enhancement of the noise spectral density with increasing the ac signal frequency. As shown, the Fano factor in the super-Poissonian regime of the photon-assisted electronic transport has a sharp peak in the region of the energy gap of the superconductor.

Key words: photon-assisted electronic transport, shot noise, Fano factor, tunnel junction, superconductors.

URL: http://mfint.imp.kiev.ua/en/abstract/v38/i08/1009.html

DOI: https://doi.org/10.15407/mfint.38.08.1009

PACS: 73.50.Td, 74.25.fc, 74.45.+c, 74.55.+v, 74.78.Fk, 85.25.Cp, 85.40.Qx

Citation: I. V. Boylo, Photon-Assisted Electronic Transport: Noise Performances of Tunnel Junction on the Base of a Superconductor at Low Temperatures, Metallofiz. Noveishie Tekhnol., 38, No. 8: 1009—1018 (2016) (in Russian)

REFERENCES
  1. R. Landauer, Philos. Mag., 21, No. 172: 863 (1970). Crossref
  2. M. Büttiker, Phys. Rev. B, 46, No. 19: 12485 (1992). Crossref
  3. Ya. M. Blanter and M. Büttiker, Physics Reports, 336, No. 1–2: 1 (2000). Crossref
  4. M. V. Moskalets, Metod Matritsi Rasseyaniya v Teorii Kvantovogo Transporta (Uchebnoe Posobie) [Scattering Matrix Approach to Non-Stationary Quantum Transport (Schoolbook)] (Kharkov: KPI: 2010) (in Russian).
  5. M. Thalakulam, W. W. Xue, F. Pan, Z. Ji, J. Stettenheim, L. Pfeiffer, K. W. West, and A. J. Rimberg, arXiv:0708.0861v1 [cond-mat.mes-hall]).
  6. M. Gamero-Casta-o, Review of Scientific Instruments, 78, No. 4: 043301 (2007). Crossref
  7. A. A. Kozhevnikov, R. J. Schoelkopf, and D. E. Prober, Phys. Rev. Lett., 84, No. 15: 3398 (2000). Crossref
  8. J. Hammer and W. Belzig, Phys. Rev. B, 84, No. 8: 085419 (2011). Crossref
  9. T. J. Suzuki and T. Kato, Phys. Rev. B, 91, No. 16: 165302 (2014). Crossref
  10. M. Belogolovskii, Phys. Rev. B, 67, No. 10: 100503 (2003). Crossref
  11. M. H. Pedersen and M. Büttiker, Phys. Rev. B, 58, No. 19: 12993 (1998). Crossref

© 2013–2017 "G.V. Kurdyumov Institute for Metal Physics"