THEORETICAL INTERPRETATION OF SCANNING TUNNELING MICROSCOPY IMAGES - APPLICATION TO THE MOLYBDENUM-DISULFIDE FAMILY OF TRANSITION-METAL DICHALCOGENIDES

被引：18

作者：

COLEY, TR

GODDARD, WA

BALDESCHWIELER, JD

机构：

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 1991年 / 9卷 / 02期

关键词：

D O I：

10.1116/1.585591

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have performed ab initio quantum mechanical calculations to describe scanning tunneling microscopy (STM) images of MoS2 and MoTe2. These results indicate that the interpretation of the STM images of these and related materials depends sensitively on experimental conditions. For example, determining whether the maximum tunneling current correlates to the top atom (S or Te) or to the second-layer atom (Mo) requires information on the tip-sample separation. Based on these results we discuss some STM experimental procedures which would allow assignment of the chemical identity of STM spots with greater certainty.

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页码：470 / 474

页数：5

相关论文

共 21 条

[1] EFFECT OF ATOMIC FORCE ON THE SURFACE CORRUGATION OF 2H-NBSE2 OBSERVED BY SCANNING TUNNELING MICROSCOPY [J].

BANDO, H ;

TOKUMOTO, H ;

MIZUTANI, W ;

WATANABE, K ;

OKANO, M ;

ONO, M ;

MURAKAMI, H ;

OKAYAMA, S ;

ONO, Y ;

WAKIYAMA, S ;

SAKAI, F ;

ENDO, K ;

KAJIMURA, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (01) :L41-L43

[2] TUNNELLING FROM A MANY-PARTICLE POINT OF VIEW [J].

BARDEEN, J .

PHYSICAL REVIEW LETTERS, 1961, 6 (02) :57-&

[3] 7X7 RECONSTRUCTION ON SI(111) RESOLVED IN REAL SPACE [J].

BINNIG, G ;

ROHRER, H ;

GERBER, C ;

WEIBEL, E .

PHYSICAL REVIEW LETTERS, 1983, 50 (02) :120-123

[4] ELECTRONIC-STRUCTURE OF MOSE2, MOS2, AND WSE2 .2. THE NATURE OF THE OPTICAL BAND-GAPS [J].

COEHOORN, R ;

HAAS, C ;

DEGROOT, RA .

PHYSICAL REVIEW B, 1987, 35 (12) :6203-6206

[5] FUNDAMENTAL-ASPECTS OF THE ELECTRONIC-STRUCTURE, MATERIALS PROPERTIES AND LUBRICATION PERFORMANCE OF SPUTTERED MOS2 FILMS [J].

FLEISCHAUER, PD .

THIN SOLID FILMS, 1987, 154 (1-2) :309-322

[6]

HAY PJ, 1985, J CHEM PHYS, V82, P270, DOI 10.1063/1.448799

[7] THERMAL ELECTRON-TRANSFER REACTIONS IN POLAR-SOLVENTS [J].

KESTNER, NR ;

LOGAN, J ;

JORTNER, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1974, 78 (21) :2148-2166

[8] ABINITIO STUDY OF ELECTRONIC COUPLING IN THE AQUEOUS FE-2+-FE-3+ ELECTRON EXCHANGE PROCESS [J].

LOGAN, J ;

NEWTON, MD .

JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (06) :4086-4091

[9] PHOTOEMISSION STUDIES OF LAYERED TRANSITION-METAL DICHALCOGENIDES - MOS2 [J].

MCMENAMIN, JC ;

SPICER, WE .

PHYSICAL REVIEW B, 1977, 16 (12) :5474-5487

[10] CRYSTAL STRUCTURE OF MOTE2 [J].

PUOTINEN, D ;

NEWNHAM, RE .

ACTA CRYSTALLOGRAPHICA, 1961, 14 (06) :691-&