SURFACE-MORPHOLOGY OF AG(110) CLOSE TO ITS ROUGHENING TRANSITION

被引：52

作者：

ROBINSON, IK

VLIEG, E

HORNIS, H

CONRAD, EH

机构：

[1] UNIV MISSOURI,DEPT PHYS & ASTRON,COLUMBIA,MO 65211

[2] FOM,1098 SJ AMSTERDAM,NETHERLANDS

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.67.1890

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the thermal roughening of the Ag(110) surface using synchrotron x-ray diffraction. The data taken out of plane (nonzero perpendicular momentum transfer) show a clear two-component line shape below the roughening transition at T(R) = 790 K. We interpret this as coexistence of flat (110)-oriented regions and slightly inclined, rough regions on the surface below T(R). The temperature dependence of the angle between the components and their relative amplitudes implies that roughening takes place by the gradual replacement of the (110) faceted regions by the rough phase.

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页码：1890 / 1893

页数：4

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