Interband magneto-optical absorption in gallium arsenide

Vrehen, Q. H. F.

doi:10.1016/0022-3697(68)90263-1

Cited by 225 publications

(37 citation statements)

References 18 publications

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“…As fitted to optical absorption measurements by Thurmond [5], the constants in eq (9) Blakemore has examined a number of attempts to determine the intrinsic carrier density in GaAs [6], and in his review article [3] proposes a modification of the density of states to account for the nonparabolicity of the conduction band. This proposal is based on Kane's [7] k • p perturbation approach to determining the band structure and Vrehen's [8] approximation for nonparabolicity in the energy range {E -Ec) - Long before the temperature reaches 1000 K, however, electrons begin to populate the and Xe conduction band minima. As Blakemore shows [3], this effect is important as the temperature increases above 400 K. For temperatures exceeding 900 K, the Lq conduction band contains more than half of all conduction electrons.…”

Section: Bandgap -Gaasmentioning

confidence: 99%

“…3.36). see eqs (7) and (8) relative error (6) Den8ity(ca-3)»,/,30X, '3 Energy (eV)',/,30X, '4 Degeneracy ' ,/,30X, 'B Replace entry' ,/,30X, '6 Delete entry',/) CALL PROMPTC Enter number (8) DN(SELECT) (7),B(7),C(7),D(7) REAL A1(7),B1(7),C1(7),D1(7) REAL A2(7),B2(7).D2(7) REAL A3(7),B3(7),D3(7) REAL A4(7),B4(7),D4 (7) (6) (1)). QR.…”

Section: Hole Effective Mass -Simentioning

confidence: 99%

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Eprop :

Seabaugh¹,

Mathias²,

Bell³

1990

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Section: Bandgap -Gaasmentioning

confidence: 99%

Section: Hole Effective Mass -Simentioning

confidence: 99%

Eprop :

Seabaugh¹,

Mathias²,

Bell³

1990

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“…This provides a pobsibihty for discarding the very rough technique of calculating the diamagnetic exciton (DE) binding energy RZ, proposed by Vrehen [6] for GaAs and employed by Weiler [37.…”

Section: Introductionmentioning

confidence: 99%

Diamagnetic excitons and the indium antimonide energy band parameters

Éfros

Kanskaya

Kokhanovskii

et al. 1982

Physica Status Solidi (b)

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The oscillatory absorption edge spectrum of InSb crystals exhibiting the discrete structure of the Wannier-Mott exciton a t H = 0 is studied a t 1.8 K in magnetic fields of up to 80 kOe.The experimental data obtained are analyzed with a computer taking into account the excitonic nature of the phenomenon and the effect on the Landau levels of the nonlocality of potential resulting from the electron4ectron exchange interaction. A set of band parameters i s presented which provides a minimum discrepancy between the theoretical and experimental spectra of not more than 0.65 meV per datum point: E,=23.42 eV, F = -

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“…Both corrections are needed for GaAs; each leads to a magnetic field and/or energy-dependent effective mass of the conduction electrons. The correction for nonparabolicity has been obtained from the expression obtained by Vrehen,17 namely, that the corrected energy E is given by the expression EϭE 0 (1Ϫ␦E 0 /E g ), where E 0 is the energy calculated for a parabolic band, E g is the band-gap energy, and the parameter ␦ϭ0.83. The influence of the nonresonant electron-phonon interaction has been accounted for using the low-field analytical expressions given by Peeters and Devreese 18 with the electron-phonon interaction constant ␣ϭ0.066.…”

Section: ϫ3mentioning

confidence: 99%

Landau-like states in the magneto-optical spectrum of a shallow donor impurity: Theory versus experiment

et al. 1996

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A calculation of the energy levels and the wave functions for a shallow donor impurity in an applied magnetic field is put forward. The behavior of the donor electron in directions perpendicular to the field is described by a basis set of Landau wave functions, and a variational procedure is used to generate approximate forms for the wave function along the field axis. Theoretical values for the ionization energies of the impurity are calculated and a comparison with both existing and new experimental data, also reported here, is made for impurities in bulk GaAs. The model is used to obtain hydrogenlike states of the impurity as well as the so-called ''metastable'' or ''autoionizing'' Landau-like states. A comparison with a ''hydrogenic'' method of calculation is used to highlight the validity of the model. Also, transition probabilities from the ground to excited donor states are deduced. The results obtained are used to identify the various peaks observed in experimental spectra. Differences between theory and experiment are attributed to the occurrence of Fano resonances. A discussion of the behavior of the impurity in an applied magnetic field calls into question the expected ordering of the energy levels of such a system. ͓S0163-1829͑96͒05735-9͔

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Interband magneto-optical absorption in gallium arsenide

Cited by 225 publications

References 18 publications

Eprop :

Eprop :

Diamagnetic excitons and the indium antimonide energy band parameters

Landau-like states in the magneto-optical spectrum of a shallow donor impurity: Theory versus experiment

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