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Volumn 66, Issue 19, 2002, Pages 1-4

Catalysis of nanotube plasticity under tensile strain

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EID: 84863931857     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.66.193403     Document Type: Article
Times cited : (3)

References (35)
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    • 0004200710 scopus 로고    scopus 로고
    • edited by M. S. Dresselhaus, G. Dresselhaus, and Ph. Avouris (Springer-Verlag, Berlin
    • Carbon Nanotubes, edited by M. S. Dresselhaus, G. Dresselhaus, and Ph. Avouris (Springer-Verlag, Berlin, 2001);
    • (2001) Carbon Nanotubes
  • 18
    • 0030570070 scopus 로고    scopus 로고
    • B.R. Eggen, et al., Science 272, 87 (1996).
    • (1996) Science , vol.272 , pp. 87
    • Eggen, B.R.1
  • 27
    • 85038341619 scopus 로고    scopus 로고
    • Calculations with the planewave basis have been performed using the PWSCF package (see S. Baroni, A. Dal Corso, S. de Gironcoli, and P. Giannozzi, URL, An energy cutoff of 40 Ry has been used
    • Calculations with the planewave basis have been performed using the PWSCF package (see S. Baroni, A. Dal Corso, S. de Gironcoli, and P. Giannozzi, URL http://www.pwscf.org). An energy cutoff of 40 Ry has been used.
  • 31
    • 0001636258 scopus 로고
    • Ref. 8, no indication of the size of the unit cells was provided, either for the graphene or nanotube calculations. As repulsion between defect images in periodic calculations depends on their distance, it is therefore difficult to make direct comparisons. As a matter of fact, an early ab initio work
    • In Ref. 8, no indication of the size of the unit cells was provided, either for the graphene or nanotube calculations. As repulsion between defect images in periodic calculations depends on their distance, it is therefore difficult to make direct comparisons. As a matter of fact, an early ab initio work [E. Kaxiras and J.C. Pandey, Phys. Rev. Lett. 61, 2693 (1988)] found an energy barrier of 10.4 eV for the SW transformation in graphene.
    • (1988) Phys. Rev. Lett. , vol.61 , pp. 2693
    • Kaxiras, E.1    Pandey, J.C.2
  • 32
    • 85038303050 scopus 로고    scopus 로고
    • Our values of 10.3 and 4.0 eV found for the uncatalyzed and catalyzed barriers in graphene at 0% strain can be compared to the 9.0 and 2.3 eV found respectively in Ref. 10 for a small graphitic (formula presented) flake. The large freedom for relaxation in the flake as compared to the infinite sheet (due to different boundary conditions) may explain the discrepancy between the two results
    • Our values of 10.3 and 4.0 eV found for the uncatalyzed and catalyzed barriers in graphene at 0% strain can be compared to the 9.0 and 2.3 eV found respectively in Ref. 10 for a small graphitic (formula presented) flake. The large freedom for relaxation in the flake as compared to the infinite sheet (due to different boundary conditions) may explain the discrepancy between the two results.
  • 33
    • 85038338071 scopus 로고    scopus 로고
    • Diffuse dangling bond orbitals are knowingly difficult to describe with strictly localized basis. This may be at the origin of the problem encountered with the DZ basis for the uncatalyzed saddle-point configuration
    • Diffuse dangling bond orbitals are knowingly difficult to describe with strictly localized basis. This may be at the origin of the problem encountered with the DZ basis for the uncatalyzed saddle-point configuration.
  • 35
    • 85038292058 scopus 로고    scopus 로고
    • Our calculations show that the lowering of the barrier by a boron adatom is not effective at 0% stress. Indeed, the final state reached after the “SW” transformation involves a four-coordinated boron atom. This is very different from that shown in Fig. 11(f), and one cannot therefore speak of a catalytic reaction
    • Our calculations show that the lowering of the barrier by a boron adatom is not effective at 0% stress. Indeed, the final state reached after the “SW” transformation involves a four-coordinated boron atom. This is very different from that shown in Fig. 11(f), and one cannot therefore speak of a catalytic reaction.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.