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Volumn 109, Issue 21, 1998, Pages 9549-9560

Structural instability of the diamond C(111) surface induced by hydrogen chemisorption

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EID: 0000956384     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.477617     Document Type: Article
Times cited : (12)

References (67)
  • 65
    • 21544472840 scopus 로고    scopus 로고
    • Such hydrogenated (2×1) π-reconstructed surface was found to be a stable structure according to ab initio calculation (Refs. 17 and 20). Additional supporting evidence is from the comparison with H/C (100)-(2×1). The calculated bond length (1.61 Å) of a C-C dimer chain on the first layer of the reconstructed H/C (111)-(2×1) surface is similar to that of a dimer C-C bond (1.62 Å) for the monohydride phase on H/C (100)-(2×1). Since the monohydride H/C (100)-(2×1) surface has been shown to be a stable structure both theoretically and experimentally, the existence of a stable H/C (111)-(2×1) surface is thus not unlikely. Moreover, the C-H bonds in two adjacent carbon atoms on H/C (111)-(2×1) are expected to be in the pseudostaggered conformation and suffer less van der Waals repulsion
    • Such hydrogenated (2×1) π-reconstructed surface was found to be a stable structure according to ab initio calculation (Refs. 17 and 20). Additional supporting evidence is from the comparison with H/C (100)-(2×1). The calculated bond length (1.61 Å) of a C-C dimer chain on the first layer of the reconstructed H/C (111)-(2×1) surface is similar to that of a dimer C-C bond (1.62 Å) for the monohydride phase on H/C (100)-(2×1). Since the monohydride H/C (100)-(2×1) surface has been shown to be a stable structure both theoretically and experimentally, the existence of a stable H/C (111)-(2×1) surface is thus not unlikely. Moreover, the C-H bonds in two adjacent carbon atoms on H/C (111)-(2×1) are expected to be in the pseudostaggered conformation and suffer less van der Waals repulsion.
  • 66
    • 21544463101 scopus 로고    scopus 로고
    • To the first order of approximation, the strain energy was estimated to be ∼1.5 eV/unit cell, based on the potential curve shown in Fig. 14 in Ref. 6, where the energy difference between 2D/C (111)-(1×1) and clean C (111)-(2×1) states was ∼3 eV
    • To the first order of approximation, the strain energy was estimated to be ∼1.5 eV/unit cell, based on the potential curve shown in Fig. 14 in Ref. 6, where the energy difference between 2D/C (111)-(1×1) and clean C (111)-(2×1) states was ∼3 eV.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.