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040 _aAIKTC-KRRC
_cAIKTC-KRRC
100 _918417
_aDoghmane, Abdellaziz
245 _aEffects of Al content on elastic parameters of AlxGa1-xAs (0 ≤ x ≤ 1) alloys
250 _aVol.60(2), Feb
260 _aNew Delhi
_bCSIR
_c2022
300 _a131-137p.
520 _aElastic parameters of AlxGa1-xAs (0 ≤ x ≤ 1) alloys are numerically determined and analyzed on the basis of scanning acoustic microscopy technique. Thus, the dependence of Al concentrations, x, on all features of reflection coefficient and acoustic materials signatures (critical angles of reflected modes, spatial periods, peaks of FFT spectra and their corresponding wave velocities) has been considered, analyzed and discussed. It is found that as Al content increases several behaviors are obtained: (i) all critical angles of longitudinal, transverse and Rayleigh waves, decrease, (ii) all spatial periods increase and (ii) both Rayleigh and longitudinal wave velocities increase. Moreover, the variations of these parameters, P, were quantified and semi-empirical formulas were found to be of the form: P = c + ax + bx2; from these formulas, valuable information can be derived and may be useful for AlxGa1-xAs compositional characterization.
650 0 _94642
_aHumanities and Applied Sciences
700 _918418
_aOuchtati, Amina
773 0 _x0019-5596
_tIndian journal of pure & applied physics (IJPAP)
_dNew Delhi CSIR-NISCAIR
856 _uhttp://op.niscair.res.in/index.php/IJPAP/article/view/54664
_yClick here
942 _2ddc
_cAR