ISLAND ORDERING ON CLEAN PD(110)

被引:25
作者
HORNIS, H [1 ]
WEST, JR [1 ]
CONRAD, EH [1 ]
ELLIALTIOGLU, R [1 ]
机构
[1] BILKENT UNIV,DEPT PHYS,ANKARA,TURKEY
来源
PHYSICAL REVIEW B | 1993年 / 47卷 / 19期
关键词
D O I
10.1103/PhysRevB.47.13055
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
High resolution low-energy electron diffraction measurements are reported that demonstrate the existence of semiordered islands on the clean Pd(110) surface. The islands are stable up to 1000-degrees-C and are approximately 90 atoms long in the [001] direction. A simple model is presented that makes use of step-step interactions to generate the periodic island structure. This model predicts that ordered islands form below the roughening temperature if the step creation energy is small compared to the step-step interaction. A justification for this condition is given for the Pd(110) surface.
引用
收藏
页码:13055 / 13058
页数:4
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