THERMAL ROUGHNESS OF A CLOSE-PACKED METAL-SURFACE - PT(001)

被引：28

作者：

ABERNATHY, DL

MOCHRIE, SGJ

ZEHNER, DM

GRUBEL, G

GIBBS, D

机构：

[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831

[2] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.69.941

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An x-ray scattering study of the morphology of the Pt(001) surface reveals that below 1820 K it is atomically smooth on length scales exceeding 5000 angstrom. However, above 1820 K the Pt(001) surface is rough. Specifically, the scattering near the specular condition is diffuse, and may be modeled using a height-height correlation function which diverges logarithmically at large distances. Our data suggest that the average separation between thermally generated steps is many lattice constants.

引用

页码：941 / 944

页数：4

共 31 条

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