Uniaxial-stress spectroscopy of luminescence at 0.74 eV from vanadium-doped gallium arsenide

Armelles, G.; Barrau, J.; Thébault, D.

doi:10.1088/0022-3719/17/36/039

Cited by 19 publications

(5 citation statements)

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“…Computer simulation taking into account optical transitions involving two phonons (ħωE and ħωA) with the ε-mode Jahn-Teller effect at the 3 Τ2 state known from other experiments [3][4][5][6][7] and the obtained value of the SA parameter lead to a reconstruction of the shape of both luminescence and absorption bands (see Fig. 1).…”

Section: Resultsmentioning

confidence: 98%

“…The results of several experiments were analysed in terms of a dynamical Jahn-Teller effect with the ε-mode existing in the excited 3Τ2 state [3][4][5][6][7]. The obtained values of the Huang-Rhys parameter SE = EJT/ħωE (where ΕJT is the Jahn-Teller energy and ħωE -the phonon energy) vary between 3.4 and 4.…”

Section: Introductionmentioning

confidence: 99%

“…The parameter SA describing the interaction of the α-mode with the excited 3Τ2 state can be thus obtained by a moment analysis of the luminescence or absorption bands [8] or from the hydrostatic pressure coefficient of one of these bands. This pressure coefficient is known from a uniaxial stress experiment [3], but with a significant experimental error.…”

Section: Introductionmentioning

confidence: 99%

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Hydrostatic Pressure Spectroscopy of the Vanadium Luminescence in GaAs

et al. 1992

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We report luminescence measurements of the intracenter transition 3 Τ2 -3 Α2 of the V 3+ (3d2 ) charge state in semi-insulating GaAs under hydrostatic pressure up to 0.8 GPa at liquid helium temperature. The hydrostatic pressure coefficient of the zero-phonon line is found to be equal to 6.9 ± 0.2 meV/GPa. This result enables us to determine the Huang-Rhys parameter, which characterizes the coupling to the symmetric mode of vibration, as SA = 1.4 ± 0.1. Using this parameter, computer simulation leading to a reconstruction of the shape of both luminescence and corresponding absorption spectra were performed.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrostatic Pressure Spectroscopy of the Vanadium Luminescence in GaAs

et al. 1992

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“…-Please order a reprint rather than making your own copy. III -V host lattices where it is supported by ESR, Zeeman and uniaxial-stress experiments [10][11][12][13][14][15][16].…”

Section: Emission Spectramentioning

confidence: 91%

“…3) so that a 10 cm -1 splitting of the excited state is inferred. It has been attributed to combined influence of spin-orbit and Jahn-Teller couplings in the initial 3 T 2 (F) state, resulting in a higher T t +T 2 and a lower A, + E level [12][13][14][15]17],…”

Section: + (D 3 )mentioning

confidence: 99%