Imaging High-Energy Electrons Propagating in a Crystal

被引：16

作者：

Etheridge, Joanne ^{[1
,2
]}

Lazar, Sorin ^{[3
,4
,5
]}

Dwyer, Christian ^{[1
,2
,6
]}

Botton, Gianluigi A. ^{[4
,5
]}

机构：

[1] Monash Univ, Monash Ctr Elect Microscopy, Clayton, Vic 3800, Australia

[2] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

[3] FEI Elect Opt, NL-5600 KA Eindhoven, Netherlands

[4] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON, Canada

[5] McMaster Univ, Canadian Ctr Elect Microscopy, Hamilton, ON, Canada

[6] Monash Univ, ARC Ctr Excellence Design Light Met, Clayton, Vic 3800, Australia

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 16期

基金：

澳大利亚研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

RESOLUTION; SCATTERING; SCALE; ATOMS;

D O I：

10.1103/PhysRevLett.106.160802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It has recently become possible to focus a beam of high-energy electrons to a spot smaller than an atom, with vast potential for the study of condensed matter. We devise an experiment that can image, with subangstrom resolution, the distribution of such an electron beam as it scatters within an atomic lattice. Our experiments reveal the acute sensitivity of the scattered electron distribution to 0.1 angstrom shifts of the impact point. Scattering due to plasmon excitations is also examined. Implications for the study of the atomic and electronic structure of condensed matter are discussed.

引用

页数：4

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