Constant-initial-state spectroscopy of black phosphorus: Reexamination of resonant photoemission

Takashi Takahashi, H. Ohsawa, N. Gunasekara, T. Kinoshita, H. Ishii, T. Sagawa, T. Miyahara, H. Kato

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Abstract

Resonant photoemission in black phosphorus has been reexamined by constant-initial-state (CIS) spectroscopy. The CIS spectra with valence peaks at 2.5 and 10.4 eV as initial states have a clear doublet structure due to the spin-orbit splitting at the 2p core threshold, showing a striking contrast to the earlier study. It has been elucidated that (1) contrary to the earlier report the Fano-type antiresonance does not take place or is undetectably small for the first valence peak at 2.5 eV, and (2) the strong enhancement of the 10.4-eV peak at the 2p core excitation is mainly due to the normal L2,3VV Auger process but not due to the core-exciton-induced Auger process as proposed in the earlier studies.

Original languageEnglish
Pages (from-to)1485-1487
Number of pages3
JournalPhysical Review B
Volume33
Issue number2
DOIs
Publication statusPublished - 1986 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Takahashi, T., Ohsawa, H., Gunasekara, N., Kinoshita, T., Ishii, H., Sagawa, T., Miyahara, T., & Kato, H. (1986). Constant-initial-state spectroscopy of black phosphorus: Reexamination of resonant photoemission. Physical Review B, 33(2), 1485-1487. https://doi.org/10.1103/PhysRevB.33.1485