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Electron transport in electrically biased inverse parabolic double-barrier structure |
| M Bati1,2,3, S Sakiroglu1, I Sokmen1 |
1. Physics Department, Faculty of Science, Dokuz Eylül University, 35390 İzmir, Turkey;
2. Physics Department, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, 35390 İzmir, Turkey;
3. Physics Department, Faculty of Arts and Sciences, Recep Tayyip Erdoğan University, 53100 Rize, Turkey |
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Abstract A theoretical study of resonant tunneling is carried out for an inverse parabolic double-barrier structure subjected to an external electric field. Tunneling transmission coefficient and density of states are analyzed by using the non-equilibrium Green's function approach based on the finite difference method. It is found that the resonant peak of the transmission coefficient, being unity for a symmetrical case, reduces under the applied electric field and depends strongly on the variation of the structure parameters.
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Received: 12 November 2015
Revised: 16 February 2016
Accepted manuscript online:
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PACS:
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73.63.-b
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(Electronic transport in nanoscale materials and structures)
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73.40.Gk
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(Tunneling)
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85.30.De
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(Semiconductor-device characterization, design, and modeling)
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Corresponding Authors:
M Bati
E-mail: m.bati@deu.edu.tr
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Cite this article:
M Bati, S Sakiroglu, I Sokmen Electron transport in electrically biased inverse parabolic double-barrier structure 2016 Chin. Phys. B 25 057307
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