Transmission Canals for the Photon-Assisted Transport of Electron through the Double-Barrier Resonant Tunneling Structure

Tkach, N. V.; Seti, Ju. O.; Voіtseкhіvsкa, О. М.

doi:10.12693/aphyspola.124.94

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…As an example of practical use we should mention the important role of phonon-and photon assisted tunneling of electrons through the multi-layer resonant tunneling nanostructures (RTS), where, due to the interaction with the fields, the new states between which the quantum transitions occur are observed causing the appearance of new transmitting canals of the system [3,4]. These phenomena essentially effect the functioning of nanodevices (quantum cascade lasers and detectors), the main operating elements of which are the multi-layer RTS [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Properties and temperature evolution of the spectrum of localized quasi-particles interacting with polarization phonons in two models

Tkach¹,

Seti²,

Voіtseкhіvsкa³

et al. 2016

Condens. Matter Phys.

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Using the Feynman-Pines diagram technique, the energy spectrum of localized quasi-particles interacting with polarization phonons is calculated and analyzed in the wide range of energies at the finite temperature of the system. It is established that the general model of the system, besides the bound states known from the simplified model with an additional condition for the operator of quasi-particles number, contains the new bound states even for the systems with weak coupling. The contribution of multi-phonon processes into the formation of renormalized spectrum of the system is analyzed. The reasons of the appearance, behaviour and disappearance of separate pairs of bound states depending on the coupling constant and temperature are revealed.

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Section: Introductionmentioning

confidence: 99%

Properties and temperature evolution of the spectrum of localized quasi-particles interacting with polarization phonons in two models

Tkach¹,

Seti²,

Voіtseкhіvsкa³

et al. 2016

Condens. Matter Phys.

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“…The theoretical methods of the calculation of spectral parameters of RTS, being the elements of nano-devices, are presented in the book [32] and reviews [33,34]. The last achievements of the theory concerning the photonassisted transport in multilayered RTS are presented in reviews [35,36] and original papers [37,38].…”

Section: Introductionmentioning

confidence: 99%

Photon- and phonon-assisted transport of electrons in resonant tunneling structures

Tkach¹,

Seti²,

Voіtseкhіvsкa³

et al. 2017

J. Phys. Stud.

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The quantum mechanical theory of photon-and phonon assisted tunneling of electrons through the open multilayered nanostructures being the cascades of quantum cascade detector and quantum cascade laser is developed. The theory of electronic dynamic conductivity and spectral parameters (resonance energies and widths) of their quasi-stationary states is established within the effective mass approximation and models of rectangular and triangular potential profiles of resonant tunneling structure, respectively.It is shown that an open model of multilayered resonant tunneling structure, comparing with the closed one, adequately describes the physical processes in cascades and their elements (active regions, extractors, injectors) and, with respect to the experimental data, gives an opportunity to calculate and reveal their optimal geometrical design without any fitting parameters.

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Dynamic Conductivity of Electrons and Electron-Phonon Interaction in Open Three-Well Nanostructures

et al. 2015

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The theoretical description of electronic tunneling transport through the three-well nanostructure (In0.53Ga0.47As/In0.52Al0.48As), being an expanded active region of quantum cascade detector, is presented. Using the solution of the Schrödinger equation, the dynamic conductivity caused by quantum transitions due to the interaction of electrons with electromagnetic eld and phonons is calculated. Within the Green functions approach, the electron spectrum, renormalized due to the interaction with conned optical and interface phonons is obtained at cryogenic and room temperatures. The role of dierent mechanisms of electronphonon interaction in the formation of temperature shifts, decay rates of electron states and electromagnetic eld absorption bands is investigated. It is shown that independently of the temperature, the contribution produced by interface phonons into renormalized electron spectrum is several times bigger than that of conned phonons. However, the experimentally observed long-wave shift and broadening of absorption band at higher temperatures is, mainly, caused by the decreasing heights of resonant tunneling structure potential barriers.

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Transmission Canals for the Photon-Assisted Transport of Electron through the Double-Barrier Resonant Tunneling Structure

Cited by 3 publications

References 34 publications

Properties and temperature evolution of the spectrum of localized quasi-particles interacting with polarization phonons in two models

Properties and temperature evolution of the spectrum of localized quasi-particles interacting with polarization phonons in two models

Photon- and phonon-assisted transport of electrons in resonant tunneling structures

Dynamic Conductivity of Electrons and Electron-Phonon Interaction in Open Three-Well Nanostructures

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