共 3 条
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.
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页码:L583 / L587
页数:5
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