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Proximity Effect of the Contacts on Electron Transport in Mesoscopic Devices

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Abstract

The Wigner function formalism is used for studying electron quantum transport in mesoscopic systems. In this work we show that, if the correlation of the electron wave function vanishes outside the region of interest (for example inside the contacts), then transport is affected inside the device. This property is verified analytically. Results show that, for very short devices, tunneling is actually influenced by the distance between the contacts. Modification in the electron density and conductivity have been numerically observed.

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References

  1. C. Jacoboni, R. Brunetti, P. Bordone, and A. Bertoni, in Topics in High Field Transport in Semiconductors, edited by K.F. Brennan and P.P. Ruden (World Scientific, Singapore, 2001), p. 25.

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  2. E. Wigner, Physical Review, 40, 749 (1932).

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  3. P. Bordone and C. Jacoboni, J. Comput. Electron., 1, 67 (2002).

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  4. P. Bordone, A. Bertoni, R. Brunetti, and C. Jacoboni, Mathematics and Computers in Simulation, 62, 307 (2003).

    Google Scholar 

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Authors and Affiliations

  1. INFM—National Research Center on nanoStructures and bioSystems at Surfaces (S3), Modena, Italy

    Andrea Bertoni, Paolo Bordone, Giulio Ferrari, Nicoletta Giacobbi & Carlo Jacoboni

  2. Advanced Research Center on Electronic Systems, Università di Bologna, Italy

    Andrea Bertoni

  3. Dipartimento di Fisica, Università di Modena e Reggio Emilia, Via Campi 213/A, I-41100, Modena, Italy

    Paolo Bordone, Giulio Ferrari, Nicoletta Giacobbi & Carlo Jacoboni

Authors
  1. Andrea Bertoni
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  2. Paolo Bordone
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  3. Giulio Ferrari
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  4. Nicoletta Giacobbi
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  5. Carlo Jacoboni
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Bertoni, A., Bordone, P., Ferrari, G. et al. Proximity Effect of the Contacts on Electron Transport in Mesoscopic Devices. Journal of Computational Electronics 2, 137–140 (2003). https://doi.org/10.1023/B:JCEL.0000011414.18872.fa

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  • DOI: https://doi.org/10.1023/B:JCEL.0000011414.18872.fa

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