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005 | 20221018113638.0 | ||
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_aAIKTC-KRRC _cAIKTC-KRRC |
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_918417 _aDoghmane, Abdellaziz |
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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 |
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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 |
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700 |
_918418 _aOuchtati, Amina |
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773 | 0 |
_x0019-5596 _tIndian journal of pure & applied physics (IJPAP) _dNew Delhi CSIR-NISCAIR |
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856 |
_uhttp://op.niscair.res.in/index.php/IJPAP/article/view/54664 _yClick here |
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_2ddc _cAR |