Skip to main content
placeholder image

Stretching induced Hall current and conductance anisotropy in graphene

Journal Article


Download full-text (Open Access)

Abstract


  • We evaluate the effect of stretching on the optical conductance of

    a single layer graphene sheet. It is found that the low energy

    (Dirac regime) isotropy that leads to the `universal conductance'

    is lost. More significantly, due to the loss of C_3 symmetry, a

    non-zero Hall conductance emerges for stretching along chiral

    directions, reaching a maximum at a stretching angle of 45

    degrees, and being as high a S_0 = e2/4h at van Hove

    singular point for bond angle changes of about 2 degrees.

UOW Authors


  •   Wright, A R. (external author)
  •   Zhang, C

Publication Date


  • 2009

Citation


  • Wright, A. R. & Zhang, C. (2009). Stretching induced Hall current and conductance anisotropy in graphene. Applied Physics Letters, 95 (16), 163104-1-163104-3.

Scopus Eid


  • 2-s2.0-70350430210

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1534&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/515

Start Page


  • 163104-1

End Page


  • 163104-3

Volume


  • 95

Issue


  • 16

Abstract


  • We evaluate the effect of stretching on the optical conductance of

    a single layer graphene sheet. It is found that the low energy

    (Dirac regime) isotropy that leads to the `universal conductance'

    is lost. More significantly, due to the loss of C_3 symmetry, a

    non-zero Hall conductance emerges for stretching along chiral

    directions, reaching a maximum at a stretching angle of 45

    degrees, and being as high a S_0 = e2/4h at van Hove

    singular point for bond angle changes of about 2 degrees.

UOW Authors


  •   Wright, A R. (external author)
  •   Zhang, C

Publication Date


  • 2009

Citation


  • Wright, A. R. & Zhang, C. (2009). Stretching induced Hall current and conductance anisotropy in graphene. Applied Physics Letters, 95 (16), 163104-1-163104-3.

Scopus Eid


  • 2-s2.0-70350430210

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1534&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/515

Start Page


  • 163104-1

End Page


  • 163104-3

Volume


  • 95

Issue


  • 16