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Volumn 71, Issue 7, 2005, Pages

Ab initio simulation of photoinduced transformation of small rings in amorphous silica

Author keywords

[No Author keywords available]

Indexed keywords

SILICON DIOXIDE;

EID: 15744365672     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.71.073307     Document Type: Article
Times cited : (20)

References (26)
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    • Copyright IBM Corp 1990-2003, Copyright MPI fuer Festkoerperforschung Stuttgart
    • CPMD V3.7, Copyright IBM Corp 1990-2003, Copyright MPI fuer Festkoerperforschung Stuttgart 1997-2001.
    • (1997) CPMD V3.7
  • 14
    • 15744400687 scopus 로고    scopus 로고
    • note
    • In the other two models, the hole is self-trapped on a strongly strained siloxane bond in large rings. Their concentration in our samples is probably overestimated due to the still fast cooling rate and small simulation cell.
  • 18
    • 15744405768 scopus 로고    scopus 로고
    • private communication
    • A. Laio (private communication).
    • Laio, A.1
  • 21
    • 15744398005 scopus 로고    scopus 로고
    • note
    • In a preliminary simulation, we have chosen a collective variable which allows the breaking of any SiO bond of the ring. As expected, by adding Gaussians, we have seen a large lengthening of the Si(1)-O(2) bond indicating that the bond which traps the hole is weaker and is the most prone to break.
  • 22
    • 15744390059 scopus 로고    scopus 로고
    • note
    • Constant temperature is enforced by velocity rescaling at the target temperature with a tolerance of 10%.
  • 23
    • 0345491105 scopus 로고
    • 1-NBOHC distances below 5 Å for the B3LYP functional and below 5.4 Å for the BLYP functional. The calculations have been performed with the code Gaussian98 [GAUSSIAN98, M. J. Frisch, G. W. Trucks, H. B. Schlegel et al. (Gaussian Inc., Pittsburgh, PA, 1998)] and the 6-311+G* basis set which provides a good description of point defects in silica [G. Pacchioni and M. Vitiello, J. Non-Cryst. Solids 245, 175 (1999)].
    • (1988) Phys. Rev. B , vol.37 , pp. 785
    • Lee, C.1    Yang, W.2    Parr, R.G.3
  • 24
    • 0000189651 scopus 로고
    • 1-NBOHC distances below 5 Å for the B3LYP functional and below 5.4 Å for the BLYP functional. The calculations have been performed with the code Gaussian98 [GAUSSIAN98, M. J. Frisch, G. W. Trucks, H. B. Schlegel et al. (Gaussian Inc., Pittsburgh, PA, 1998)] and the 6-311+G* basis set which provides a good description of point defects in silica [G. Pacchioni and M. Vitiello, J. Non-Cryst. Solids 245, 175 (1999)].
    • (1993) J. Chem. Phys. , vol.98 , pp. 5648
    • Becke, A.D.1
  • 25
    • 0004133516 scopus 로고    scopus 로고
    • Gaussian Inc., Pittsburgh, PA
    • 1-NBOHC distances below 5 Å for the B3LYP functional and below 5.4 Å for the BLYP functional. The calculations have been performed with the code Gaussian98 [GAUSSIAN98, M. J. Frisch, G. W. Trucks, H. B. Schlegel et al. (Gaussian Inc., Pittsburgh, PA, 1998)] and the 6-311+G* basis set which provides a good description of point defects in silica [G. Pacchioni and M. Vitiello, J. Non-Cryst. Solids 245, 175 (1999)].
    • (1998) GAUSSIAN98
    • Frisch, M.J.1    Trucks, G.W.2    Schlegel, H.B.3
  • 26
    • 0032673437 scopus 로고    scopus 로고
    • 1-NBOHC distances below 5 Å for the B3LYP functional and below 5.4 Å for the BLYP functional. The calculations have been performed with the code Gaussian98 [GAUSSIAN98, M. J. Frisch, G. W. Trucks, H. B. Schlegel et al. (Gaussian Inc., Pittsburgh, PA, 1998)] and the 6-311+G* basis set which provides a good description of point defects in silica [G. Pacchioni and M. Vitiello, J. Non-Cryst. Solids 245, 175 (1999)].
    • (1999) J. Non-Cryst. Solids , vol.245 , pp. 175
    • Pacchioni, G.1    Vitiello, M.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.