Measurements of photon intensity map for metal particles by scanning tunneling microscopy

被引：2

作者：

Nishitani, R ^{[1
]}

Umeno, T ^{[1
]}

Suga, K ^{[1
]}

Kasuya, A ^{[1
]}

Nishina, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 98077,JAPAN

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1996年 / 217卷

关键词：

photon intensity map; metal particles; scanning tunneling microscopy;

D O I：

10.1016/S0921-5093(96)10307-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have measured maps of the photon intensity emitted from gold metal particles in scanning tunneling microscopy (STM) of metal films in ultra high vacuum. The photon images are obtained with a spatial resolution in a nanometer scale. The photon intensity is recorded simultaneously with the measurements of a topography image of the film by STM. We have measured photon images for various morphologies of the film. The observed photon maps are well correlated with the morphology. The photon maps for the dense aggregation of small particles show similar contrasting particles to those on the corresponding morphology. The photon intensity for the rough surface is influenced by the surface geometry of the tip and the particles. and the contrast of the photon map is modified from the morphology. We have observed that the photon intensity is dependent on the material and the grain of the material. The effect of the asymmetry of the rip shape on the photon map is found.

引用

页码：99 / 102

页数：4

共 12 条

[1] PHOTON-EMISSION IN SCANNING-TUNNELING-MICROSCOPY - INTERPRETATION OF PHOTON MAPS OF METALLIC SYSTEMS [J].