Exciton-phonon coupling and exciton damping due to acoustic phonons in anisotropic nonpolar crystals

Grigorchuk, N. I.

doi:10.1088/0953-8984/11/2/008

Cited by 3 publications

(2 citation statements)

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“…We note that all of the matrix elements (II. 19)-(II.20) and (II.25)-(II.28) are real because of symmetry considerations (see Ref. [42] for details).…”

Section: B Scattering Amplitudesmentioning

confidence: 99%

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Exciton-exciton and exciton-charge carrier interaction and the exciton collisional broadening in GaAs/AlGaAs quantum wells

Gribakin,

Khramtsov,

Trifonov

et al. 2021

Preprint

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Wave functions of heavy-hole excitons in GaAs/Al0.3Ga0.7As square quantum wells (QWs) of various widths are calculated by the direct numerical solution of a three-dimensional Schrödinger equation using a finite-difference scheme. These wave functions are then used to determine the exciton-exciton, exciton-electron and exciton-hole fermion exchange constants in a wide range of QW widths (5 − 150 nm). Additionally, the spin-dependent matrix elements of elastic excitonexciton, exciton-electron and exciton-hole scattering are calculated. From these matrix elements, the collisional broadening of the exciton resonance is obtained within the Born approximation as a function of the areal density of excitons, electrons and holes respectively for QW widths of 5, 15, 30 and 50 nm. The obtained numerical results are compared with other theoretical works.

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“…We note that all of the matrix elements (II. 19)-(II.20) and (II.25)-(II.28) are real because of symmetry considerations (see Ref. [42] for details).…”

Section: B Scattering Amplitudesmentioning

confidence: 99%

“…A common and well studied interaction is the excitonphonon interaction [18][19][20][21][22][23][24]. In this case, the concentration of phonons is determined by the sample's temperature.…”

Section: Introductionmentioning

confidence: 99%