Phonon dispersion curves of a BC3 honeycomb epitaxial sheet

H. Yanagisawa, T. Tanaka, Y. Ishida, M. Matsue, E. Rokuta, S. Otani, C. Oshima

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Abstract

The growth of a uniform BC3honeycomb sheet over a macroscopic surface area of NbB2(001) and its phonon-dispersion curve was determined experimentaly. The experiment was carried out in an ultrahigh vaccum chamber with a cylindrical mirror analyzer for Augen-electron spectroscopy. The theoretical phonon-dispersion curves were obtained on the basis of an ab initio calculation. The atomic positions were optimized by the iterative loops of the calculation. It was observed that the C-C and B-C bond lengths were 0.142 and 0.155 nm respectively with the lattice constant of 0.52 nm.

Original languageEnglish
JournalPhysical Review Letters
Volume93
Issue number17
DOIs
Publication statusPublished - 2004 Oct 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yanagisawa, H., Tanaka, T., Ishida, Y., Matsue, M., Rokuta, E., Otani, S., & Oshima, C. (2004). Phonon dispersion curves of a BC3 honeycomb epitaxial sheet. Physical Review Letters, 93(17). https://doi.org/10.1103/PhysRevLett.93.177003