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Journal of Physical Studies 14(3), Article 3703 [8 pages] (2010)
DOI: https://doi.org/10.30970/jps.14.3703 THE PROPERTIES OF ELECTRONIC CONDUCTIVITY IN A TWO-BARRIER SYMMETRIC NANOSTRUCTURE OF A CYLINDRICAL SHAPEM. V. Tkach, O. M. Makhanets, Ju. O. Seti, M. M. Dovganiuk, O. M. Voitsekhivska
Fedkovych Chernivtsi National University, 2, Kotsyubinskogo St., Chernivtsi, UA--58012, Ukraine |
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The theory of resonance energies (RE) and resonance widths (RW) of electron quasi-stationary states (QSS) and electronic conductivity in open two-barrier resonance-tunel structure (RTS) of a cylindrical shape is developed. Within the effective masses and rectangular potential wells and $δ$-barriers models the complete Schrödinger equation taking into account the interaction between the electron and electromagnetic fields using the approximation of a small signal is solved.
For the nanosystem In$_{0.53}$Ga$_{0.47}$As/In$_{0.52}$Al$_{0.48}$As calculation of spectral parameters was performed. The dependences of conductivity on a mono-energetic electron beam falling at RTS energy and electromagnetic field energy emitted and absorbed by the system were obtained and analyzed. A direct relation between experimentally measured parameters of conductivity and resonance widths of electron QSS in open RTS was established for the first time.
PACS number(s): 73.21.Hb, 73.21.La, 73.40.Gk