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THE CALCULATION OF THE ENERGY-BAND STRUCTURE OF SOME SEMICONDUCTORS WITH THE PSEUDOPOTENTIAL PERTURBATION METHOD (APPLICATION TO GaAs, GaP AND Ga[As1-xPx]ALLOY)

CHANG YU-WON YU QI-HUA

THE CALCULATION OF THE ENERGY-BAND STRUCTURE OF SOME SEMICONDUCTORS WITH THE PSEUDOPOTENTIAL PERTURBATION METHOD (APPLICATION TO GaAs, GaP AND Ga[As1-xPx]ALLOY)

CHANG YU-WON, YU QI-HUA
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  • The energy-band structures of the GaAs, GaP, and Ga [As1-xPx] alloys have been calculated on the "empty lattice" assumption by taking the pseudopotential as perturbations.The pseudopotential parameters are chosen so as to make the calculated direct and indirect energy gap agree with that given by the experiments. The results thus obtained are in good agreement with experimental data at room temperature. Assuming that the lattice constant and pseudopotential parameters vary linearly from GaAs to GaP, we have calculated the energy band of the Ga[As1-xPx] alloys for x=0.2, 0.5, and 0.8. The direct and indirect energy gap is equal at x=0.41 which is in reasonable agreement with the results of Spitzer and Fenner.
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  • Received Date:  02 November 1964
  • Published Online:  05 August 2005

THE CALCULATION OF THE ENERGY-BAND STRUCTURE OF SOME SEMICONDUCTORS WITH THE PSEUDOPOTENTIAL PERTURBATION METHOD (APPLICATION TO GaAs, GaP AND Ga[As1-xPx]ALLOY)

  • 1. 中国科学院

Abstract: The energy-band structures of the GaAs, GaP, and Ga [As1-xPx] alloys have been calculated on the "empty lattice" assumption by taking the pseudopotential as perturbations.The pseudopotential parameters are chosen so as to make the calculated direct and indirect energy gap agree with that given by the experiments. The results thus obtained are in good agreement with experimental data at room temperature. Assuming that the lattice constant and pseudopotential parameters vary linearly from GaAs to GaP, we have calculated the energy band of the Ga[As1-xPx] alloys for x=0.2, 0.5, and 0.8. The direct and indirect energy gap is equal at x=0.41 which is in reasonable agreement with the results of Spitzer and Fenner.

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