Low energy electron diffraction;
Nd structures;
Low-index transition metal surfaces;
Monte Carlo simulations;
MONTE-CARLO-SIMULATION;
ELECTRONIC-STRUCTURE;
LINEAR STRUCTURES;
ATOMIC WIRES;
CRYSTAL-FACE;
THIN-FILMS;
GD;
W(110);
STM;
TB;
D O I:
10.1016/j.apsusc.2010.01.112
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:
The adsorption of Nd on the Mo(1 1 0) surface has been studied by low energy electron diffraction and Auger electron spectroscopy. It has been found that at low coverages Nd adatoms form a rich amount of dilute (n x 2) commensurate structures, which can be explained as forming zigzag chains oriented along the [1 1 0] direction. Monte Carlo simulations indicate that the formation of the zigzag chain structures is initiated by the indirect lateral interaction between Nd adatoms. (C) 2010 Elsevier B. V. All rights reserved.