In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 39, No. 7R ( 2000-07-01), p. 3943-
Abstract:
Synchrotron radiation photoelectron spectroscopy (SRPES) has been performed to investigate the surface stoichiometry of the S-terminated GaAs(001)-(2 ×6), and in particular, to determine the chemical species of the five dimers, which are separated by missing dimers and form the unit structure of the (2 ×6) reconstruction. The S 2p photoemission spectra show a significant decrease in the peak intensity with increasing substrate temperature, whereas no significant changes are observed for the As 3d photoemission spectra The Ga 3d spectra are decomposed into a bulk component and more than one surface component, one of which is attributed to a Ga–S bond and decreases in accordance with the change observed in the S 2p spectra. These results strongly support the model that each pair of the five dimers in the (2 ×6) reconstruction consists of S–S dimers.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.39.3943
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2000
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
2006801-3
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