Near-field electron energy loss spectroscopy of nanoparticles

被引：52

作者：

Cohen, H ^{[1
]}

Maniv, T

Tenne, R

Hacohen, YR

Stephan, O

Colliex, C

机构：

[1] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[2] Technion Israel Inst Technol, Dept Chem, IL-32000 Haifa, Israel

[3] Univ Paris 11, F-91405 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.80.782

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Near-field spectroscopy of nanoparticles was performed with a subnanometer probe size, using a scanning transmission electron microscope. at nonintersecting beam-particle configuration, surface collective modes are isolated from the entire excitation spectrum. The relativistic narrow beam generates a new type of spatial dispersion and may induce an additional spectral quantization. Line intensity variations during the mapping can be accounted for quantitatively by using a relatively simple theoretical model. This method is also suggested as a new way for transmission electron microscopy studies of beam sensitive samples.

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页码：782 / 785

页数：4

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