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LEED analysis of the Co{001}c(2 × 2)O structure |
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| Authors: | M Maglietta E Zanazzi U Bardi F Jona DW Jepsen PM Marcus |
| Institution: | Istituto di Chimica Fisica, Università di Firenze, Firenze, Italy;Department of Materials Science, State University of New York, Stony Brook, New York 11794, USA;IBM Research Center, P.O. Box 218, Yorktown Heights, New York 10598, USA |
| Abstract: | A LEED intensity analysis of the c(2 × 2) structure obtained upon adsorption of oxygen gas on Co {00l} is reported. Three structural models have been tested on the basis of a total of 13 LEED spectra for three angles of incidence and one azimuth. The correct model has oxygen atoms chemisorbed in the four-fold symmetrical hollows formed by four adjacent substrate atoms. Atomic arrangement and metal-oxygen distances are analogous to those found in Ni{001}c(2 × 2)O. |
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