Park, YK Min, SK 2024-01-21T18:06:51Z 2024-01-21T18:06:51Z 2021-09-04 1997-09 0374-4884 https://pubs.kist.re.kr/handle/201004/143631 The normal mode frequencies and eigenvector components of silicon have been calculated using a first-principles approach that involves ab initio norm-conserving nonlocal pseudopotentials. The required electronic states have been obtained by self-consistently solving the Kohn-Sham equations. The screening response of the conduction electrons to the field of the ions is obtained using density-functional linear-response theory within the local-density approximation. We present numerical results for the dispersion curves of silicon. Comparison is made with expermental data. English KOREAN PHYSICAL SOC SCREENING CALCULATION SI First-principles calculation of the phonon dispersion curves of silicon Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.31, pp.S267 - S270 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 31 S267 S270 scie scopus A1997XW76700006 2-s2.0-0031480950 Physics, Multidisciplinary Physics Article; Proceedings Paper SCREENING CALCULATION SI first-principles calculation density functional theory local density approximation pseudopotential linear response theory phonon dispersion silicon