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Volumn 369, Issue 2-3, 2010, Pages 66-70

Engineering of the electronic structures of metal-porphyrin tapes and metal-hexaphyrin tapes: A first-principles study

Author keywords

Band structure; Density functional theory; Half metal; Porphyrin tapes

Indexed keywords


EID: 77950867754     PISSN: 03010104     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.chemphys.2010.02.007     Document Type: Article
Times cited : (9)

References (32)
  • 14
    • 0001011727 scopus 로고    scopus 로고
    • also, see the references therein
    • Ghosh A. Acc. Chem. Res. 31 (1998) 189 also, see the references therein
    • (1998) Acc. Chem. Res. , vol.31 , pp. 189
    • Ghosh, A.1
  • 27
    • 77950858897 scopus 로고    scopus 로고
    • note
    • For a better understanding, see Fig. 2 of Ref. [15] for the HOMO and the LUMO of dimers. We also want to mention that this feature is not affected by the fact that our PPTs have metal ions at the center instead of two hydrogen atoms. In short, 3d atomic orbitals of the metal ion do not constitute the valence band and conduction band. Also see Ref. [26] below.
  • 28
    • 77950860038 scopus 로고    scopus 로고
    • note
    • As Fig. 2 shows, other d(Ni) orbitals, which constitute flat bands, also lie below the valence band or above the conduction band.
  • 29
    • 77950865800 scopus 로고    scopus 로고
    • note
    • It is quite similar to that for TL Fe-PPT described in Fig. 2 of Ref. [17], in which the metal ion belongs to the same group as Ru in the periodic table. One minor difference is the relative position of the Fermi level for the majority spin channel.
  • 30
    • 77950857656 scopus 로고    scopus 로고
    • note
    • yz(Ru).
  • 31
    • 77950858030 scopus 로고    scopus 로고
    • note
    • The calculation for the HPH molecule is quite similar to that for the HPT. The only difference is that k-point sampling is done with the Γ-point only, since the molecule is not periodic in any direction.
  • 32
    • 77950863248 scopus 로고    scopus 로고
    • note
    • Although most of the discussions given in this work will be qualitatively correct, band gaps may not be quantitatively correct due to the self-energy problem of the GGA. Likewise, half-metallicity of Ru-PPT may also need a further investigation using a more sophisticated method.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.