SCANNING-TUNNELING-MICROSCOPE TIP-INDUCED MIGRATION OF VACANCIES ON GAP(110)

被引：67

作者：

EBERT, P ^{[1
]}

LAGALLY, MG ^{[1
]}

URBAN, K ^{[1
]}

机构：

[1] UNIV WISCONSIN, MADISON, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.70.1437

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scanning-tunning-microscope tip-induced migration of divacancies is observed on n-doped GaP(110). The motion occurs only at negative polarity of the tunneling voltage and along the [110BAR] direction, independent of the scanning direction, and is thus purely nonthermal. It is suggested that a field-induced reduction of the barrier for the migration initiates the motion. A quantitative analysis of the migration indicates long-lived excited states, consistent with charged trap states in doped semiconductors.

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页码：1437 / 1440

页数：4

相关论文

共 18 条

[1] NEW MECHANISM FOR INTERSTITIAL MIGRATION [J].

BOURGOIN, JC ;

CORBETT, JW .

PHYSICS LETTERS A, 1972, A 38 (02) :135-&

[2] THE ELECTRONIC-STRUCTURE OF THE INP(110) SURFACE STUDIED BY SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY [J].

EBERT, P ;

COX, G ;

POPPE, U ;

URBAN, K .

SURFACE SCIENCE, 1992, 271 (03) :587-595

[3] PHOSPHORUS VACANCIES AND ADATOMS ON GAP(110) SURFACES STUDIED BY SCANNING TUNNELING MICROSCOPY [J].

EBERT, P ;

URBAN, K .

ULTRAMICROSCOPY, 1993, 49 (1-4) :344-353

[4]

EBERT P, IN PRESS SURF SCI

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

EIGLER, DM ;

SCHWEIZER, EK .

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

[6] ATOM-SELECTIVE IMAGING OF THE GAAS(110) SURFACE [J].

FEENSTRA, RM ;

STROSCIO, JA ;

TERSOFF, J ;

FEIN, AP .

PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1192-1195

[7] DIRECT MEASUREMENT OF DIFFUSION BY HOT TUNNELING MICROSCOPY - ACTIVATION-ENERGY, ANISOTROPY, AND LONG JUMPS [J].

GANZ, E ;

THEISS, SK ;

HWANG, IS ;

GOLOVCHENKO, J .

PHYSICAL REVIEW LETTERS, 1992, 68 (10) :1567-1570

[8] ATOMICALLY RESOLVED CARRIER RECOMBINATION AT SI(111)-(7X7) SURFACES [J].

HAMERS, RJ ;

MARKERT, K .

PHYSICAL REVIEW LETTERS, 1990, 64 (09) :1051-1054

[9]

KELLOG GL, IN PRESS

[10]

KITAMURA N, 1992, B AM PHYS SOC, V37, P115