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Volumn 46, Issue 23, 2005, Pages 10431-10436

Structure and Born effective charge determination for planar-zigzag β-poly(vinylidene fluoride) using density-functional theory

Author keywords

Density functional theory; Effective charges; Ferroelectric polymers

Indexed keywords

CHARGE TRANSFER; PROBABILITY DENSITY FUNCTION;

EID: 26844510414     PISSN: 00323861     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.polymer.2005.08.064     Document Type: Article
Times cited : (31)

References (57)
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    • 0001506123 scopus 로고
    • A. Lovinger Science 220 1983 1115 1121
    • (1983) Science , vol.220 , pp. 1115-1121
    • Lovinger, A.1
  • 15
    • 26844520779 scopus 로고    scopus 로고
    • note
    • 2- deflections in their model and the observed space group of Cm2m, Hasegawa et al. propose a statistically-disordered model in which equal amounts of the deflected chain and its mirror image are present in the lattice. We have not included the chain's mirror image in our present study.
  • 29
    • 26844433172 scopus 로고    scopus 로고
    • note
    • The DFT calculations along with atomic relaxations and polarization determination were completed using programs written, maintained and distributed by the research group of AM Rappe.
  • 31
    • 26844456537 scopus 로고    scopus 로고
    • For OPIUM pseudopotential generation programs, see http://opium. sourceforge.net.
  • 32
    • 26844513831 scopus 로고    scopus 로고
    • note
    • At 50 Ry plane-wave energy cut-off, there exists some core overlap between the C and F atoms. A set of 60 Ry pseudopotentials were constructed and atomic relaxations for the planar-zigzag structure were repeated. The relaxed 60 Ry structure was identical to the 50 Ry structure. In addition, the spontaneous polarization for the 60 Ry structure was identical to that of the 50 Ry structure.
  • 51
    • 26844528536 scopus 로고    scopus 로고
    • note
    • In addition to the structural consideration, both spontaneous polarization and Born effective charges for the alternatively-deflected structure were almost identical to those of the planar-zigzag structure.
  • 54
    • 26844491343 scopus 로고    scopus 로고
    • note
    • 4.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.