THE (1X2) AND (1X4) STRUCTURE ON CLEAN PT(110) STUDIED BY STM, AES AND LEED

Authors
SPELLER S KUNTZE J RAUCH T BOMERMANN J HUCK M ASCHOFF M HEILAND W
Citation
S. Speller et al., THE (1X2) AND (1X4) STRUCTURE ON CLEAN PT(110) STUDIED BY STM, AES AND LEED, Surface science, 366(2), 1996, pp. 251-259
Citations number
29
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
366
Issue
2
Year of publication
1996
Pages
251 - 259
Database
ISI
SICI code
0039-6028(1996)366:2<251:T(A(SO>2.0.ZU;2-E
Abstract
By different annealing procedures the (1 x 2) and the (1 x 4) structur es on Pt(110) are produced on the clean surface. Both structures are v erified by STM and LEED. AES shows very low impurity levels of C, O, S , Si and Ca in both cases. In case of the (1 x 4) structure, Si and/or SiOx signals are not significantly higher than in case of the (1 x 2) structure. The (1 x 2) structure is combined with a perfect ''fish-sc ale'' pattern of the step structure. The (1 x 4) structure is connecte d with large flat terraces bound by steep ledges of a height of 30-40 Angstrom. The (1 x 4) structure is identified as a paired-row (1 x 2) structure.