Isotropy of optical excitations in few-layer graphenes

S. H. Lee, F. L. Shyu, C. W. Chiu, M. F. Lin

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The geometric and the most band structures of monolayer and AB-stacked bilayer graphenes exhibit strong anisotropy. Nevertheless, the absorption spectra are isotropic for the polarization vector on graphene plane. The velocity matrix elements dominate this property. These results suggest that AA- and AB-stacked few-layer graphenes and graphites manifest this feature.

Original languageEnglish
Pages (from-to)3594-3597
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number34
Publication statusPublished - 2010 Jul 26

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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