ATOMIC-SCALE IMAGING OF A 2D FLUID-SOLID EQUILIBRIUM FOR CS AND O COADSORBED ON A RU(0001) SURFACE

被引:20
|
作者
TROST, J [1 ]
WINTTERLIN, J [1 ]
ERTL, G [1 ]
机构
[1] MAX PLANCK GESELL, FRITZ HABER INST, D-14195 BERLIN, GERMANY
关键词
ALKALI METALS; SCANNING TUNNELING MICROSCOPY; SURFACE STRUCTURE; SURFACE THERMODYNAMICS;
D O I
10.1016/0039-6028(95)00351-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A solid-fluid phase equilibrium has been studied by STM and LEED for coadsorbed Cs and O on a Ru(0001) surface. It is shown that a (root 7 X root 7)R19 degrees Cs/O structure melts through a coexistance region into a 2D disordered phase upon rising the temperature. STM images recorded at 300 K reveal perfectly ordered islands coexisting with fluid areas which display also small ordered metastable clusters.
引用
收藏
页码:L583 / L587
页数:5
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