ROLE OF REGULAR STEPS ON THE FORMATION OF MISSING-ROW RECONSTRUCTIONS - OXYGEN-CHEMISORPTION ON NI(771)

被引：31

作者：

HAASE, O

KOCH, R

BORBONUS, M

RIEDER, KH

机构：

[1] Fackbereich Physik, Freie Universität Berlin, D-1000 Berlin 33

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.66.1725

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scanning tunneling microscopy and LEED reveal that on regularly stepped Ni(771) the oxygen-driven missing-row reconstruction of the (110) terraces proceeds in a very transparent manner: Substrate atoms can move to adjacent terraces without crossing steps, where they line up with remaining atom rows to form linear O-Ni chains. On the resulting double-width terraces perfect missing-row structures all over the surface are formed in contrast to flat Ni(110); to surmount the double-step barrier, elevated temperatures (greater-than-or-equal-to 250-degrees-C) are required.

引用

页码：1725 / 1728

页数：4