STM study of the structure of sulfur (2 radical 3 times 2 radical 3)R30 degree overlayer on rhenium (0001)

Conference · Fri Jul 01 00:00:00 EDT 1988

OSTI ID:5651774

Ogletree, D. F.; Ocal, C.; Marchon, B.; Somorjai, G. A.; Salmeron, M.; Beebe, T.; Siekhaus, W. ^[1]

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1. Lawrence Berkeley Lab., CA (USA)

The structure of the sulfur overlayer chemisorbed on rhenium(0001) has been studied with scanning tunneling microscopy. The ordered sulfur overlayer was prepared in UHV and then transferred through air to an STM operating at a vacuum of 10{sup {minus}7} Torr. The sulfur overlayer passivates the rhenium substrate in air. STM images show the atomic structure of the overlayer unit cell to be a hexagonal ring of six sulfur atoms. Defect structures in the two dimensional lattice of sulfur hexagons, overlayer domain boundaries and substrate dislocations were also observed. 17 refs., 8 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5651774
• Report Number(s): LBL-27563; CONF-8907157--1; ON: DE90001568
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ADSORPTION
ATOMS
BOND LENGTHS
COHERENT SCATTERING
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
DIMENSIONS
DISLOCATIONS
ELEMENTS
IMAGES
LAYERS
LENGTH
LINE DEFECTS
METALS
MOLYBDENUM
NONMETALS
RHENIUM
SCATTERING
SORPTION
SUBSTRATES
SULFUR
TRANSITION ELEMENTS