KINETICS OF OXYGEN-INDUCED FACETING OF VICINAL AG(110)

被引：79

作者：

OZCOMERT, JS ^{[1
]}

PAI, WW ^{[1
]}

BARTELT, NC ^{[1
]}

REUTTROBEY, JE ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT CHEM,COLL PK,MD 20742

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.72.258

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The oxygen-induced breakup of vicinal Ag(110) surfaces into (110) facets and step bunches is measured with scanning tunneling microscopy. Faceting transitions are recorded in real time at room temperature for two surface orientations. A vicinal Ag(110) surface misoriented by 2-degrees towards [001] facets via the growth of isolated nuclei. Step-position fluctuations of increasing magnitude are observed prior to faceting, revealing a critical terrace width of approximately 100 angstrom. In contrast, oxygen exposure causes Ag(110) misoriented by 2-degrees towards [331BAR] to facet spontaneously with no evident nucleation barrier.

引用

页码：258 / 261

页数：4

共 23 条

[1]

Chernov A., 1961, SOV PHYS USP, V4, P116, DOI [DOI 10.1070/PU1961V004N01ABEH003328, 10.1070/PU1961v004n01ABEH003328.]

[2] ADSORPTION OF OXYGEN ON SILVER SINGLE-CRYSTAL SURFACES [J].