메뉴 건너뛰기




Volumn 79, Issue 20, 2009, Pages

Efficient wave-function matching approach for quantum transport calculations

Author keywords

[No Author keywords available]

Indexed keywords


EID: 67649510501     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.205322     Document Type: Article
Times cited : (64)

References (34)
  • 4
    • 3643122627 scopus 로고
    • 10.1103/PhysRevLett.68.2512
    • Y. Meir and N. S. Wingreen, Phys. Rev. Lett. 68, 2512 (1992). 10.1103/PhysRevLett.68.2512
    • (1992) Phys. Rev. Lett. , vol.68 , pp. 2512
    • Meir, Y.1    Wingreen, N.S.2
  • 7
  • 8
    • 33746906297 scopus 로고    scopus 로고
    • 5th IEEE Conference on Nanotechnology, Nagoya, Japan, 2005 (IEEE Xplore
    • H. S. Gokturk, 5th IEEE Conference on Nanotechnology, Nagoya, Japan, 2005 (IEEE Xplore, 2005), Vol. 2, pp. 677-680.
    • (2005) , vol.2 , pp. 677-680
    • Gokturk, H.S.1
  • 10
    • 0038442872 scopus 로고    scopus 로고
    • 10.1126/science.1081572
    • A. Nitzan and M. A. Ratner, Science 300, 1384 (2003). 10.1126/science.1081572
    • (2003) Science , vol.300 , pp. 1384
    • Nitzan, A.1    Ratner, M.A.2
  • 13
    • 0001490590 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.84.358
    • N. D. Lang and P. Avouris, Phys. Rev. Lett. 84, 358 (2000). 10.1103/PhysRevLett.84.358
    • (2000) Phys. Rev. Lett. , vol.84 , pp. 358
    • Lang, N.D.1    Avouris, P.2
  • 15
    • 12344289075 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.70.195402
    • P. A. Khomyakov and G. Brocks, Phys. Rev. B 70, 195402 (2004). 10.1103/PhysRevB.70.195402
    • (2004) Phys. Rev. B , vol.70 , pp. 195402
    • Khomyakov, P.A.1    Brocks, G.2
  • 16
    • 0001179625 scopus 로고
    • 10.1103/PhysRevB.44.8017
    • T. Ando, Phys. Rev. B 44, 8017 (1991). 10.1103/PhysRevB.44.8017
    • (1991) Phys. Rev. B , vol.44 , pp. 8017
    • Ando, T.1
  • 21
    • 67649459340 scopus 로고    scopus 로고
    • Ph.D. thesis Technical University of Denmark
    • H. H. B. Sørensen, Ph.D. thesis, Technical University of Denmark, 2008.
    • (2008)
    • Sørensen, H.H.B.1
  • 22
    • 67649469115 scopus 로고    scopus 로고
    • Bloch's theorem (Ref.) ψi = λk ψi-1 for the ideal electrodes defines the phase factors λk eI qk d, where qk is the complex wave number and d is the layer thickness, which are referred to as Bloch factors throughout this paper.
    • Bloch's theorem (Ref.) ψi = λk ψi-1 for the ideal electrodes defines the phase factors λk eI qk d, where qk is the complex wave number and d is the layer thickness, which are referred to as Bloch factors throughout this paper.
  • 23
    • 67649456737 scopus 로고    scopus 로고
    • When using the Landauer formula in Eq. 1 it is assumed that the electrode Bloch modes carry unit current in the conduction direction. This can be conveniently accommodated by flux normalizing the Bloch modes, i.e., ∞ L,k ± → (dL / v L,k ±) 1/2 ∞ L,k ±, in the case of the left electrode (Ref.).
    • When using the Landauer formula in Eq. 1 it is assumed that the electrode Bloch modes carry unit current in the conduction direction. This can be conveniently accommodated by flux normalizing the Bloch modes, i.e., ∞ L,k ± → (dL / v L,k ±) 1/2 ∞ L,k ±, in the case of the left electrode (Ref.).
  • 27
    • 67649456738 scopus 로고    scopus 로고
    • We should point out that the metallic electrodes in the two-probe systems considered in Table 1 can be fully described by much smaller unit cells than indicated (often only a few atoms are needed) and therefore the time spent on computing the bulk modes can be vastly reduced in these specific cases. For a general method, however, which supports CNTs, nanowires, etc., as electrodes, the timings are appropriate for showing the overall trend in the computational costs.
    • We should point out that the metallic electrodes in the two-probe systems considered in Table 1 can be fully described by much smaller unit cells than indicated (often only a few atoms are needed) and therefore the time spent on computing the bulk modes can be vastly reduced in these specific cases. For a general method, however, which supports CNTs, nanowires, etc., as electrodes, the timings are appropriate for showing the overall trend in the computational costs.
  • 29
    • 0346927956 scopus 로고
    • 10.1063/1.1734456
    • R. Hoffmann, J. Chem. Phys. 39, 1397 (1963). 10.1063/1.1734456
    • (1963) J. Chem. Phys. , vol.39 , pp. 1397
    • Hoffmann, R.1
  • 34
    • 4243971222 scopus 로고
    • 10.1103/PhysRevB.23.6851
    • D. S. Fisher and P. A. Lee, Phys. Rev. B 23, 6851 (1981). 10.1103/PhysRevB.23.6851
    • (1981) Phys. Rev. B , vol.23 , pp. 6851
    • Fisher, D.S.1    Lee, P.A.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.