Adsorption of glycine on Cu(001) and related step faceting and bunching

被引：88

作者：

Zhao, XY

Gai, Z

Zhao, RG

Yang, WS ^{[1
]}

Sakurai, T

机构：

[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[2] Peking Univ, Mesoscop Phys Lab, Beijing 100871, Peoples R China

[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 98077, Japan

来源：

SURFACE SCIENCE | 1999年 / 424卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

amino acids; chemisorption; copper; glycine; scanning tunneling microscopy (STM); single crystal surfaces; surface relaxation and reconstruction;

D O I：

10.1016/S0039-6028(99)00211-3

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：

Adsorption of glycine on the Cu(001) surface has been studied with scanning tunneling microscopy. In addition to confirming the Cu(001)c(2 x 4)-glycine to be the major superstructure on the surface, it has been found that on the surface all steps are faceted to [310] directions and that the faceted steps may bunch together to form Cu{3 1 17}1 x 1-glycine facets. On the basis of our STM images and the local structure of glycine adsorbed on Cu(110) reported recently, models have been proposed for the Cu(001)c(2 x 4)- and Cu(3 1 17)1 x 1-glycine superstructures for further investigation. The models explain quite naturally the motivations behind the step faceting and bunching prosesses. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：L347 / L351

页数：5

共 13 条

[1] LOW-ENERGY ELECTRON-DIFFRACTION STUDY OF SURFACE-STRUCTURES OF ADSORBED AMINO-ACID MONOLAYERS AND ORDERED FILMS DEPOSITED ON COPPER CRYSTAL SURFACES [J].