LOCAL-STRUCTURE AND DYNAMICS OF A SEGREGATED C(2X2) SULFUR LAYER ON PD(001) STUDIED BY SCANNING TUNNELING MICROSCOPY

Authors
BURGLER D TARRACH G SCHAUB T WIESENDANGER R GUNTHERODT HJ
Citation
D. Burgler et al., LOCAL-STRUCTURE AND DYNAMICS OF A SEGREGATED C(2X2) SULFUR LAYER ON PD(001) STUDIED BY SCANNING TUNNELING MICROSCOPY, Physical review. B, Condensed matter, 47(15), 1993, pp. 9963-9966
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
47
Issue
15
Year of publication
1993
Pages
9963 - 9966
Database
ISI
SICI code
0163-1829(1993)47:15<9963:LADOAS>2.0.ZU;2-L
Abstract
We report a scanning-tunneling-microscopy study of a S overlayer on Pd (001) obtained by diffusion of S atoms from the bulk to the surface. A tomically resolved images display the c (2 X 2) symmetry of the satura tion coverage. A large variety of defects such as steps, vacancies, an d antiphase domain boundaries were imaged. The high density of domain boundaries reduces the effective coverage to only 0.4 monolayer and st abilizes this nonideal overlayer. A model of the growth mechanism is p roposed. Changes of the atomic structure on a time scale of a few minu tes were observed and are discussed.