Detailed energetic interactions of adsorbed Si dimers on Si(001)

被引:8
作者
Carpinelli, JM [1 ]
Swartzentruber, BS [1 ]
机构
[1] Sandia Natl Lab, Albuquerque, NM 87185 USA
关键词
diffusion and migration; low index single crystal surfaces; scanning tunneling microscopy; silicon; surface defects; surface diffusion;
D O I
10.1016/S0039-6028(98)00400-2
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
We investigated adsorbed Si dimers on Si(001) at similar to 100 degrees C with atom-tracking STM to determine the effect of various local environments on surface dynamics. Specifically, we find an asymmetry in the dimer diffusion along a buckled A-type step. We also measure dimer repulsion and attraction respectively from in-row and adjacent-row vacancy defects. These findings lend insight into the nature of the dimer-substrate bond and defect structure. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:L828 / L833
页数:6
相关论文
共 19 条
[1]  
[Anonymous], COMMUNICATION
[2]   SI BINDING AND NUCLEATION ON SI(100) [J].
BEDROSSIAN, PJ .
PHYSICAL REVIEW LETTERS, 1995, 74 (18) :3648-3651
[3]   STABILITIES OF SINGLE-LAYER AND BILAYER STEPS ON SI(001) SURFACES [J].
CHADI, DJ .
PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1691-1694
[4]  
DIJKKAMP D, 1992, ORDERING SURFACES IN, P85
[5]   OBSERVATION OF METASTABLE STRUCTURAL EXCITATIONS AND CONCERTED ATOMIC MOTIONS ON A CRYSTAL-SURFACE [J].
HWANG, IS ;
GOLOVCHENKO, J .
SCIENCE, 1992, 258 (5085) :1119-1122
[6]   FIELD-ION MICROSCOPE STUDIES OF SINGLE-ATOM SURFACE-DIFFUSION AND CLUSTER NUCLEATION ON METAL-SURFACES [J].
KELLOGG, GL .
SURFACE SCIENCE REPORTS, 1994, 21 (1-2) :1-88
[7]  
MO YW, 1991, SURF SCI, V248, P331
[8]   TRACKING TUNNELING MICROSCOPY [J].
POHL, DW ;
MOLLER, R .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1988, 59 (06) :840-842
[9]   STRUCTURE AND ADSORPTION CHARACTERISTICS OF CLEAN SURFACES OF GERMANIUM AND SILICON [J].
SCHLIER, RE ;
FARNSWORTH, HE .
JOURNAL OF CHEMICAL PHYSICS, 1959, 30 (04) :917-926
[10]   Experimental and theoretical study of the rotation of Si Ad-dimers on the Si(100) surface [J].
Swartzentruber, BS ;
Smith, AP ;
Jonsson, H .
PHYSICAL REVIEW LETTERS, 1996, 77 (12) :2518-2521