Electronic Conductivity in Open Cylindrical Two-Barrier Symmetric Resonance Tunnel Structure
M.V. Tkach, O.M. Makhanets, Ju.O. Seti, M.M. Dovganiuk, and O.M. Voitsekhivska
Chernivtsi National University, Chernivtsi, Kotsiybynsky str. 2, 58012, Ukraine
Received: February 2, 2010; In final form: April 6, 2010
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The theory of resonance energies and widths of electron quasi-stationary states and electronic conductivity in open cylindrical two-barrier symmetric resonance tunnel structure is developed. The complete Schrodinger equation is solved within the model of effective masses for rectangular potential wells and barriers. Interaction between electrons and electromagnetic field was taken into account using the approximation of the small signal. The calculations of spectral parameters are performed for In0.53Ga0.47As/In0.52Al0.48As resonance tunnel structure. The dependences of conductivity on the energy of mono-energy electrons beam falling at the system and electromagnetic field energy absorbed or emitted by the system are obtained and analyzed. The relation between experimentally measured parameters of conductivity and resonance widths of electron quasi-stationary states in open resonance tunnel structure is established.
DOI: 10.12693/APhysPolA.117.965
PACS numbers: 73.21.Hb, 73.21.La, 73.40.Gk