Glutamic acid adsorbed on Ag(110): direct and indirect molecular interactions

被引：12

作者：

Blankenburg, S. ^{[1
]}

Schmidt, W. G. ^{[1
]}

机构：

[1] Univ Gesamthsch Paderborn, Lehrstuhl Theoret Phys, D-33095 Paderborn, Germany

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 18期

关键词：

SURFACES; ADSORPTION;

D O I：

10.1088/0953-8984/21/18/185001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

First-principles calculations are used to rationalize the adsorption geometry and long-range order observed for (s)-glutamic acid rows adsorbed on Ag(110). Hydrogen bonds and van der Waals interactions are found to be important for the direct molecular interaction within the molecular rows. Adsorption induced charge-density waves in the substrate lead to an indirect interaction between the adsorbates, resulting in the formation of long-range order. Remarkably, structural relaxation effects also play a decisive role in the indirect interactions.

引用

页数：4

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