QUANTUM SIZE EFFECTS IN THE SURFACE-PLASMON EXCITATION OF SMALL METALLIC PARTICLES BY ELECTRON-ENERGY-LOSS SPECTROSCOPY

被引：78

作者：

OUYANG, F

BATSON, PE

ISAACSON, M

机构：

[1] CORNELL UNIV, SCH APPL & ENGN PHYS, ITHACA, NY 14853 USA

[2] IBM CORP, THOMAS J WATSON RES CTR, YORKTOWN HTS, NY 10598 USA

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.46.15421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron-energy-loss spectroscopy was used to study the quantum size effect in surface-plasmon excitations of small metallic particles, with diameters ranging from 4 to 20 nm. Scanning transmission electron microscopy was used, which provided the capability of observing electron-energy-loss spectra from individual, well-characterized silver particles. The measured relation between the surface-plasmon energy and the particle size shows a definite deviation from that predicted by macroscopic theories, and cannot be well explained by existing microscopic theories.

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页码：15421 / 15425

页数：5

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