Longitudinal-optical phonon effects on the binding energy of a hydrogenic impurity in a quantum well structure

Moukhliss, S.; Fliyou, M.; Sayouri, S.

doi:10.1007/bf02457361

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Over the past decades, a lot of investigations have already been carried out and have been devoted to the study of the electronic state in these microstructures [1 to 7]. By comparing with others systems (quasi-one dimensional and quasi-two dimensional systems), the results show that the impurity binding energy in quasi-zero dimensional systems is higher [7,8,14,15]. The binding energies and the density of states of shallow impurities in cubic [7] and in spherical quantum dots [5,11] have been calculated as function of the dot size and the impurity position in the quantum dot.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Confined LO-Phonons on the Binding Energy of the Hydrogenic Impurity in a CdSe Quantum Dot

Amrani

Fliyou

Barnoussi

et al. 2000

phys. stat. sol. (b)

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The effect of the confined LO‐phonon on the impurity binding energy in a CdSe quantum dot has been calculated by using a variational approach. The charge carrier (electron and ion)–phonon coupling is treated within the adiabatic approximation. The results show that this effect decreases as the dot size increases and depends on the impurity position. The confined LO‐phonon effect decreases as the impurity is displaced from the center to the dot boundary.

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Section: Introductionmentioning

confidence: 99%

Effect of the Confined LO-Phonons on the Binding Energy of the Hydrogenic Impurity in a CdSe Quantum Dot

Amrani

Fliyou

Barnoussi

et al. 2000

phys. stat. sol. (b)

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“…Licari and Evrard 9 gave a Hamiltonian for the electronphonon interaction in a polar crystal slab. Since, then, a considerable number of articles regarding the coupling of a Q2D electron system with optical phonons have been published [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] both with and without considering magnetic field effect.…”

Section: Introductionmentioning

confidence: 99%

Electron-confined longitudinal optical phonon interaction and strong magnetic field effects on the binding energy in GaAs quantum wells

Es-Sbai

Sali

Fliyou

et al. 2002

Journal of Applied Physics

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Articles you may be interested inThe effects of optical phonon on the binding energy of bound polaron in a wurtzite ZnO/Mg x Zn1− x O quantum wellThe effect of a spatially dependent effective mass on hydrogenic impurity binding energy in a finite parabolic quantum well with a magnetic field Electric field effects on the states of a donor impurity in rectangular cross-section vacuum/GaAs/vacuum quantum-well wiresWe study the ground state binding energy of a hydrogenic impurity subjected to an external strong magnetic field taking into account the interaction of the electron with confined longitudinal optical phonon in GaAs/Ga 1Ϫx Al x As quantum wells. Calculations are performed within the effective mass approximation using the Lee-Low-Pines ͓Phys. Rev. 90, 297 ͑1953͔͒ variational method and considering the infinite and finite character of the barrier potential. The binding energy is calculated as a function of the magnetic field and the well size. The results we have obtained show that the binding energies are very sensitive to the combined effect of the well size, the strong applied magnetic field, and the electron-phonon interaction.

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Ground- and first-excited state energies of impurity magnetopolaron in an anisotropic quantum dot

Kandemir

Çetin

2002

Phys. Rev. B

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The polaronic effect on the low-lying energy levels of an electron bound to a hydrogenic impurity in a three-dimensional ͑3D͒ anisotropic harmonic potential subjected to a uniform magnetic field is investigated by introducing a trial wave function constructed as a direct product form of an electronic part and a part of coherent phonons. Binding energies of impurity magnetopolarons corresponding to each level are analyzed in terms of the effects of both quantum confinement and magnetic field. Furthermore, a detailed discussion of the effects due to the electron-LO-phonon interaction and the effects of both magnetic field and quantum confinements on cyclotron masses asssociated with the transitions between ground and first-excited states of the bound electron is also given in this paper. Our results show that the polaron effect arising from the electron-LO-phonon interaction and confining effects together with the effect of magnetic field have a great influence on the impurity binding energies and on cyclotron masses associated with transitions between the relevant states.

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Longitudinal-optical phonon effects on the binding energy of a hydrogenic impurity in a quantum well structure

Cited by 3 publications

References 14 publications

Effect of the Confined LO-Phonons on the Binding Energy of the Hydrogenic Impurity in a CdSe Quantum Dot

Effect of the Confined LO-Phonons on the Binding Energy of the Hydrogenic Impurity in a CdSe Quantum Dot

Electron-confined longitudinal optical phonon interaction and strong magnetic field effects on the binding energy in GaAs quantum wells

Ground- and first-excited state energies of impurity magnetopolaron in an anisotropic quantum dot

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