Electronic band structure of rhombohedral arsenic studied by highly-angle-resolved ultraviolet photoelectron spectroscopy

H. Tokailin, T. Takahashi, T. Sagawa, K. Shindo

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Angle-resolved ultraviolet photoemission spectra of a rhombohedral arsenic single crystal have been measured for the first time in very high angular resolution with the He i resonance line as an exciting source. The experimentally derived band structure has been compared in detail to the self-consistent pseudopotential calculation performed in this study and with four others presented mainly by Falicov and co-workers. The present angle-resolved photoemission measurement directly identified the location of an electron pocket at the L point in the Brillouin zone and a hole pocket near the T point. It has also been elucidated that contrary to the early calculations only one band goes across the Fermi level near the L point, forming the electron pocket. Some special points with high symmetry and/or almost no dispersion along the interlayer direction have been successfully assigned in the experimentally determined band structure.

Original languageEnglish
Pages (from-to)1765-1772
Number of pages8
JournalPhysical Review B
Volume30
Issue number4
DOIs
Publication statusPublished - 1984 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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