New mechanism for single atom manipulation

被引：17

作者：

Schulz, JJ

Koch, R

Rieder, KH

机构：

[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

[2] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.84.4597

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scanning tunneling microscope (STM) investigations of the step roughening of Ag(110) have shown that the STM tip extracts atoms from otherwise stable steps even at typical imaging conditions. Detailed analyses of single STM scans reveal that none of the so far known lateral manipulation mechanisms (pushing, pulling, sliding) account for the observed atom extraction. The Ag atoms rather follow the energetically favorable path of a tip induced exchange process, similar to the concerted motion proposed previously for the diffusion an fcc(110) surfaces including a metastable and thus experimentally detectable dumbbell transition state.

引用

收藏

页码：4597 / 4600

页数：4

相关论文

共 18 条

[1] Basic steps of lateral manipulation of single atoms and diatomic clusters with a scanning tunneling microscope tip [J].

Bartels, L ;

Meyer, G ;

Rieder, KH .

PHYSICAL REVIEW LETTERS, 1997, 79 (04) :697-700

[2] Room-temperature repositioning of individual C-60 molecules at Cu steps: Operation of a molecular counting device [J].

Cuberes, MT ;

Schlittler, RR ;

Gimzewski, JK .

APPLIED PHYSICS LETTERS, 1996, 69 (20) :3016-3018

[3] AN ATOMIC SWITCH REALIZED WITH THE SCANNING TUNNELING MICROSCOPE [J].

EIGLER, DM ;

LUTZ, CP ;

RUDGE, WE .

NATURE, 1991, 352 (6336) :600-603

[4] POSITIONING SINGLE ATOMS WITH A SCANNING TUNNELING MICROSCOPE [J].

EIGLER, DM ;

SCHWEIZER, EK .

NATURE, 1990, 344 (6266) :524-526

[5] Correlated jump-exchange processes in the diffusion of Ag on Ag(110) [J].

Ferrando, R .

PHYSICAL REVIEW LETTERS, 1996, 76 (22) :4195-4198

[6] ATTRACTIVE INTERACTION BETWEEN STEPS [J].

FROHN, J ;

GIESEN, M ;

POENSGEN, M ;

WOLF, JF ;

IBACH, H .

PHYSICAL REVIEW LETTERS, 1991, 67 (25) :3543-3546

[7] Nanoscale science of single molecules using local probes [J].

Gimzewski, JK ;

Joachim, C .

SCIENCE, 1999, 283 (5408) :1683-1688

[8] A NOVEL ULTRAHIGH-VACUUM SCANNING TUNNELING MICROSCOPE FOR SURFACE SCIENCE STUDIES [J].

HAASE, O ;

BORBONUS, M ;

MURALT, P ;

KOCH, R ;

RIEDER, KH .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1990, 61 (05) :1480-1483

[9] Scanning tunneling microscopy artifact and real structure: Steps of Ag(110) [J].

Koch, R ;

Schulz, JJ ;

Rieder, KH .

EUROPHYSICS LETTERS, 1999, 48 (05) :554-560

[10] Tip-assisted diffusion on Ag(110) in scanning tunneling microscopy [J].

Li, JT ;

Berndt, R ;

Schneider, WD .

PHYSICAL REVIEW LETTERS, 1996, 76 (11) :1888-1891