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Journal of Physical Studies 18(4), Article 4702 [10 pages] (2014)
DOI: https://doi.org/10.30970/jps.18.4702 THE INFLUENCE OF STATIC AND DYNAMIC SPATIAL CHARGES ON ELECTRONIC ACTIVE CONDUCTIVITY OF THREE-BARRIER RESONANT TUNNELING STRUCTURESI. V. Boyko, Yu. B. Grynyshyn, Ju. O. Seti, M. V. Tkach
Fedkovych Chernivtsi National University, |
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The theory of active electronic dynamic conductivity of three-barrier resonant tunneling structures is developed within the model of effective mass and rectangular potential barriers for the electron using the approximation of a weak signal and taking into account the influence of spatial static and dynamic charges. It is shown that the static charge causes a weak shift of electron energy levels into the high-energy region and does not change the maximal magnitudes of active conductivity while the dynamic charge does not influence the electron spectrum but causes the redistribution of partial terms of active conductivity. It is established that the partial term of conductivity caused by the output electronic current from nanostructure decreases and the term of conductivity caused by the current in the opposite direction increases in such a way that the complete magnitude of conductivity remains almost unchanged.
PACS number(s): 73.21.Fg, 73.90.+f, 72.30.+q, 73.63.Hs