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Zone axis backscattered electron contrast for fast electrons

Technical Report:

Abstract

A dependent Bloch wave theory for inelastic scattering is adapted to predict backscattered electron (BSE) contrast from perfect crystals. This is correlated with 300 keV data from a number of zone axes from spinal, chromia, silicon, aluminium and gallium arsenide. This theory is shown to supersede an independent Bloch wave theory for BSE contrast which is incapable of accounting for asymmetry across polar axes. Orientation dependence of thermal dechanneling of fast electrons is shown to be important. The BSE scattering potential is shown to approximate to a delta function scaled by the atomic number squared on each atom. 25 refs., 1 tab., 9 figs.
Authors:
Rossouw, C J; Miller, P R; Josefsson, T W; [1]  Allen, L J [2] 
  1. CSIRO, Div. of Material Science and Technology, Clayton, Vic (Australia)
  2. Melbourne Univ., Parkville, VIC (Australia). School of Physics
Publication Date:
Dec 31, 1994
Product Type:
Technical Report
Report Number:
UM-P-94/34
Reference Number:
SCA: 665300; PA: AIX-26:019038; EDB-95:032953; SN: 95001330537
Resource Relation:
Other Information: PBD: [1994]
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRON DIFFRACTION; INELASTIC SCATTERING; BLOCH THEORY; ALUMINIUM; BACKSCATTERING; CHANNELING; CHROMIUM OXIDES; CRYSTAL STRUCTURE; EXPERIMENTAL DATA; GALLIUM ARSENIDES; LATTICE PARAMETERS; POTENTIAL SCATTERING; SILICON; SPINELS; 665300; INTERACTIONS BETWEEN BEAMS AND CONDENSED MATTER
Sponsoring Organizations:
Australian Research Council, Canberra, ACT (Australia)
OSTI ID:
10113833
Research Organizations:
Melbourne Univ., Parkville, VIC (Australia). School of Physics
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE95616775; TRN: AU9414237019038
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
25 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Rossouw, C J, Miller, P R, Josefsson, T W, and Allen, L J. Zone axis backscattered electron contrast for fast electrons. Australia: N. p., 1994. Web.
Rossouw, C J, Miller, P R, Josefsson, T W, & Allen, L J. Zone axis backscattered electron contrast for fast electrons. Australia.
Rossouw, C J, Miller, P R, Josefsson, T W, and Allen, L J. 1994. "Zone axis backscattered electron contrast for fast electrons." Australia.
@misc{etde_10113833,
title = {Zone axis backscattered electron contrast for fast electrons}
author = {Rossouw, C J, Miller, P R, Josefsson, T W, and Allen, L J}
abstractNote = {A dependent Bloch wave theory for inelastic scattering is adapted to predict backscattered electron (BSE) contrast from perfect crystals. This is correlated with 300 keV data from a number of zone axes from spinal, chromia, silicon, aluminium and gallium arsenide. This theory is shown to supersede an independent Bloch wave theory for BSE contrast which is incapable of accounting for asymmetry across polar axes. Orientation dependence of thermal dechanneling of fast electrons is shown to be important. The BSE scattering potential is shown to approximate to a delta function scaled by the atomic number squared on each atom. 25 refs., 1 tab., 9 figs.}
place = {Australia}
year = {1994}
month = {Dec}
}