Growth and thermal stability of Pd and Pt adsorption layers on the Ta(211) face

被引：5
|
作者：
Ubogyi, I
Kolaczkiewicz, J
机构：
[1] Univ Lviv, Fac Phys, UA-290005 Lviv, Ukraine
[2] Univ Wroclaw, Inst Expt Phys, PL-50204 Wroclaw, Poland
来源：
VACUUM | 1998年 / 49卷 / 02期
关键词：
D O I：
10.1016/S0042-207X(97)00157-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The initial growth of Pd and Pt on Ta(211) was studied at several temperatures by low-energy electron diffraction, Auger electron spectroscopy and work function change measurements. At room temperature Frank-van der Merwe-type growth was observed for Pd. It has been found that at temperature T > 800 K and coverage theta > 2 ML the agglomeration of adsorbate and the formation of large crystallites occurs. In both cases, of Pd and Pt adatoms, the formation of an alloy cannot be excluded. Formation of chains at low coverages has not been observed for the investigated metals. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：145 / 151
页数：7
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