메뉴 건너뛰기




Volumn 122, Issue 20, 2005, Pages

Mechanism for singular behavior in vibrational spectra of topologically disordered systems: Short-range attractions

Author keywords

[No Author keywords available]

Indexed keywords

BINARY MODES; DISORDERED SYSTEMS; PHONON SPECTRA; VIBRATIONAL SPECTRA;

EID: 20844450974     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1900726     Document Type: Article
Times cited : (2)

References (34)
  • 29
    • 20844441525 scopus 로고    scopus 로고
    • note
    • In Ref. 18, the binary mode of a MNN pair is only referred for the vibrational motion of the two particles.
  • 30
    • 20844434271 scopus 로고    scopus 로고
    • note
    • ij, relative to the reference frame of the imulation cubic box.
  • 32
    • 20844463514 scopus 로고    scopus 로고
    • note
    • To investigate any finite-size effects of the MD simulation on the numerical data of the perturbed binary-mode DOS shown in Fig. 6, we have performed similar calculations for 500 configurations of 1728 particles and 2000 configurations of 432 particles at the same thermodynamic conditions. The results turn out to be that there is no noticeable difference around the cusp in the curves obtained from 1728 and 864 particles. For the system of 432 particles, the system size has some weak effect on the width of the cusp, which is slightly narrower than those of 864 and 1728 particles. This investigation indicates that the system size of 864 particles is large enough to neglect the boundary effects of the MD simulation box on the perturbation calculations for the numerical curves shown in Fig. 6.
  • 33
    • 20844458675 scopus 로고    scopus 로고
    • note
    • We have tested the numerical accuracy of our calculations for the cusp in the DOS of the perturbed vibrational binary modes by dividing the width of the frequency histograms into half. The results show that the shape of the cusp does not change at all.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.