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Volumn 89, Issue 24, 2014, Pages

Role of acoustic phonons in Bi2Se3 topological insulator slabs: A quantum transport investigation

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EID: 84902665530     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.89.245419     Document Type: Article
Times cited : (15)

References (52)
  • 1
    • 33847795859 scopus 로고    scopus 로고
    • Topological insulators in three dimensions
    • DOI 10.1103/PhysRevLett.98.106803
    • L. Fu, C. L. Kane, and E. J. Mele, Phys. Rev. Lett. 98, 106803 (2007). PRLTAO 0031-9007 10.1103/PhysRevLett.98.106803 (Pubitemid 46393379)
    • (2007) Physical Review Letters , vol.98 , Issue.10 , pp. 106803
    • Fu, L.1    Kane, C.L.2    Mele, E.J.3
  • 2
    • 78349239882 scopus 로고    scopus 로고
    • RMPHAT 0034-6861 10.1103/RevModPhys.82.3045
    • M. Z. Hasan and C. L. Kane, Rev. Mod. Phys. 82, 3045 (2010). RMPHAT 0034-6861 10.1103/RevModPhys.82.3045
    • (2010) Rev. Mod. Phys. , vol.82 , pp. 3045
    • Hasan, M.Z.1    Kane, C.L.2
  • 15
    • 84868020435 scopus 로고    scopus 로고
    • PRLTAO 0031-9007 10.1103/PhysRevLett.109.176801
    • B. Skinner, T. R. Chen, and B. I. Shklovskii, Phys. Rev. Lett. 109, 176801 (2012). PRLTAO 0031-9007 10.1103/PhysRevLett.109.176801
    • (2012) Phys. Rev. Lett. , vol.109 , pp. 176801
    • Skinner, B.1    Chen, T.R.2    Shklovskii, B.I.3
  • 19
    • 79961237147 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.83.245322
    • S. Giraud and R. Egger, Phys. Rev. B 83, 245322 (2011). PRBMDO 0163-1829 10.1103/PhysRevB.83.245322
    • (2011) Phys. Rev. B , vol.83 , pp. 245322
    • Giraud, S.1    Egger, R.2
  • 20
    • 84856410796 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.85.035441
    • S. Giraud, A. Kundu, and R. Egger, Phys. Rev. B 85, 035441 (2012). PRBMDO 0163-1829 10.1103/PhysRevB.85.035441
    • (2012) Phys. Rev. B , vol.85 , pp. 035441
    • Giraud, S.1    Kundu, A.2    Egger, R.3
  • 24
    • 79961058192 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.83.125314
    • P. Thalmeier, Phys. Rev. B 83, 125314 (2011). PRBMDO 0163-1829 10.1103/PhysRevB.83.125314
    • (2011) Phys. Rev. B , vol.83 , pp. 125314
    • Thalmeier, P.1
  • 27
    • 77955948515 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.105.097001
    • L. Fu and E. Berg, Phys. Rev. Lett. 105, 097001 (2010). 10.1103/PhysRevLett.105.097001
    • (2010) Phys. Rev. Lett. , vol.105 , pp. 097001
    • Fu, L.1    Berg, E.2
  • 28
    • 72649092926 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.103.266801
    • L. Fu, Phys. Rev. Lett. 103, 266801 (2009). 10.1103/PhysRevLett.103. 266801
    • (2009) Phys. Rev. Lett. , vol.103 , pp. 266801
    • Fu, L.1
  • 31
    • 84866338461 scopus 로고    scopus 로고
    • For operation in surface bands, transport is independent of slab thickess [, () PRLTAO 0031-9007 10.1103/PhysRevLett.109.116804], although percentage contribution through individual layers will change accordingly. However, computational time scales exponentially with slab thickness and becomes especially demanding for acoustic phonons, with an insignificant effect on data and discussion presented in this paper.
    • For operation in surface bands, transport is independent of slab thickess [Phys. Rev. Lett. 109, 116804 (2012) PRLTAO 0031-9007 10.1103/PhysRevLett.109. 116804], although percentage contribution through individual layers will change accordingly. However, computational time scales exponentially with slab thickness and becomes especially demanding for acoustic phonons, with an insignificant effect on data and discussion presented in this paper.
    • (2012) Phys. Rev. Lett. , vol.109 , pp. 116804
  • 38
    • 84902673243 scopus 로고    scopus 로고
    • Device was simulated only up to 250 K as similar physics seems to be at play from experimental studies between 250 K to 300 K. Also, simulating higher temperatures, becomes increasing more compute-intensive, requiring long time for the self-energy in NEGF to converge.
    • Device was simulated only up to 250 K as similar physics seems to be at play from experimental studies between 250 K to 300 K. Also, simulating higher temperatures, becomes increasing more compute-intensive, requiring long time for the self-energy in NEGF to converge.
  • 40
    • 35949005441 scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.46.12485
    • M. Buttiker, Phys. Rev. B 46, 12485 (1992). PRBMDO 0163-1829 10.1103/PhysRevB.46.12485
    • (1992) Phys. Rev. B , vol.46 , pp. 12485
    • Buttiker, M.1
  • 42
    • 0006476163 scopus 로고
    • For example, disorder scattering effectively broadens energy levels in alloys, see, (); PRBMDO 0163-1829 10.1103/PhysRevB.20.4025
    • For example, disorder scattering effectively broadens energy levels in alloys, see A. Bansil, Phys. Rev. B 20, 4025 (1979); PRBMDO 0163-1829 10.1103/PhysRevB.20.4025
    • (1979) Phys. Rev. B , vol.20 , pp. 4025
    • Bansil, A.1
  • 43
    • 4243990762 scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.20.4035
    • A. Bansil, Phys. Rev. B 20, 4035 (1979); PRBMDO 0163-1829 10.1103/PhysRevB.20.4035
    • (1979) Phys. Rev. B , vol.20 , pp. 4035
    • Bansil, A.1
  • 45
    • 84902673233 scopus 로고    scopus 로고
    • We emphasize that this approach only qualitatively characterizes the temperature dependency of relative decrease in the surface current, i.e. as the Fermi-level moves away from the Dirac-point, the differences in slopes expected for greatly differing strengths of the electron-phonon coupling. The measured magnitudes of the variation will depend on the sample quality, bias, dimensions (length and sample thickness) and specific values of λ.
    • We emphasize that this approach only qualitatively characterizes the temperature dependency of relative decrease in the surface current, i.e. as the Fermi-level moves away from the Dirac-point, the differences in slopes expected for greatly differing strengths of the electron-phonon coupling. The measured magnitudes of the variation will depend on the sample quality, bias, dimensions (length and sample thickness) and specific values of λ.
  • 48
    • 84902673234 scopus 로고    scopus 로고
    • We would like to note that since interlayer scattering due to van der Waals forces are weaker than in-plane scattering. Therefore, using the same λ for interlayer scattering might lead to a marginal overestimation of the net effect of scattering between the layers.
    • We would like to note that since interlayer scattering due to van der Waals forces are weaker than in-plane scattering. Therefore, using the same λ for interlayer scattering might lead to a marginal overestimation of the net effect of scattering between the layers.
  • 49
    • 77955081319 scopus 로고    scopus 로고
    • NJOPFM 1367-2630 10.1088/1367-2630/12/6/065013
    • W. Zhang, R. Yu, H.-J. Zhang, X. Dai, and Z. Fang, New J. Phys. 12, 065013 (2010). NJOPFM 1367-2630 10.1088/1367-2630/12/6/065013
    • (2010) New J. Phys. , vol.12 , pp. 065013
    • Zhang, W.1    Yu, R.2    Zhang, H.-J.3    Dai, X.4    Fang, Z.5
  • 51
    • 82655174071 scopus 로고    scopus 로고
    • PRBMDO 0163-1829 10.1103/PhysRevB.84.195425
    • C.-Y. Moon, J. Han, H. Lee, and H. J. Choi, Phys. Rev. B 84, 195425 (2011). PRBMDO 0163-1829 10.1103/PhysRevB.84.195425
    • (2011) Phys. Rev. B , vol.84 , pp. 195425
    • Moon, C.-Y.1    Han, J.2    Lee, H.3    Choi, H.J.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.