Surface facetting and polarity of alumina

L. A. Bursill; Peng Ju Lin; David Smith

doi:10.1016/0304-3991(87)90166-5

Surface facetting and polarity of alumina

L. A. Bursill, Peng Ju Lin, David Smith

Research output: Contribution to journal › Letter › peer-review

17 Scopus citations

Abstract

Atomic-resolution electron microscopic images of ruby show (0001) polar surface facets developing under electron irradiation. Attempts to understand the "dark-line" contrasts associated with the surface atom profiles, following comparison of the experimental images with computer modelling, leads to the realization that aluminium atom and oxygen atom surface terminations may be distinguished. Hence surface polarity, as well as details of surface step structure and mobility, may be determined. Positive surface polarity is preferred.

Original language	English (US)
Pages (from-to)	223-227
Number of pages	5
Journal	Ultramicroscopy
Volume	23
Issue number	2
DOIs	https://doi.org/10.1016/0304-3991(87)90166-5
State	Published - 1987

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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title = "Surface facetting and polarity of alumina",

abstract = "Atomic-resolution electron microscopic images of ruby show (0001) polar surface facets developing under electron irradiation. Attempts to understand the {"}dark-line{"} contrasts associated with the surface atom profiles, following comparison of the experimental images with computer modelling, leads to the realization that aluminium atom and oxygen atom surface terminations may be distinguished. Hence surface polarity, as well as details of surface step structure and mobility, may be determined. Positive surface polarity is preferred.",

author = "Bursill, {L. A.} and Lin, {Peng Ju} and David Smith",

note = "Funding Information: The experimental work was supported by NSF Grant DMR-830650I to the Facility for High Resolution Electron Microscopy within the Center for Solid State Science at Arizona State University. The computational work was supported by the Australian Research Grants Committee. We are grateful to Ed Muirhead (Melbourne) and Professor J.M. Cowley (ASU) for support of visits to ASU (by L.A.B. and P.J.L.) and to Melbourne (by DJ.S.).",

year = "1987",

doi = "10.1016/0304-3991(87)90166-5",

language = "English (US)",

volume = "23",

pages = "223--227",

journal = "Ultramicroscopy",

issn = "0304-3991",

publisher = "Elsevier",

number = "2",

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TY - JOUR

T1 - Surface facetting and polarity of alumina

AU - Bursill, L. A.

AU - Lin, Peng Ju

AU - Smith, David

N1 - Funding Information: The experimental work was supported by NSF Grant DMR-830650I to the Facility for High Resolution Electron Microscopy within the Center for Solid State Science at Arizona State University. The computational work was supported by the Australian Research Grants Committee. We are grateful to Ed Muirhead (Melbourne) and Professor J.M. Cowley (ASU) for support of visits to ASU (by L.A.B. and P.J.L.) and to Melbourne (by DJ.S.).

PY - 1987

Y1 - 1987

N2 - Atomic-resolution electron microscopic images of ruby show (0001) polar surface facets developing under electron irradiation. Attempts to understand the "dark-line" contrasts associated with the surface atom profiles, following comparison of the experimental images with computer modelling, leads to the realization that aluminium atom and oxygen atom surface terminations may be distinguished. Hence surface polarity, as well as details of surface step structure and mobility, may be determined. Positive surface polarity is preferred.

AB - Atomic-resolution electron microscopic images of ruby show (0001) polar surface facets developing under electron irradiation. Attempts to understand the "dark-line" contrasts associated with the surface atom profiles, following comparison of the experimental images with computer modelling, leads to the realization that aluminium atom and oxygen atom surface terminations may be distinguished. Hence surface polarity, as well as details of surface step structure and mobility, may be determined. Positive surface polarity is preferred.

UR - http://www.scopus.com/inward/record.url?scp=0023471920&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023471920&partnerID=8YFLogxK

U2 - 10.1016/0304-3991(87)90166-5

DO - 10.1016/0304-3991(87)90166-5

M3 - Letter

AN - SCOPUS:0023471920

SN - 0304-3991

VL - 23

SP - 223

EP - 227

JO - Ultramicroscopy

JF - Ultramicroscopy

IS - 2

ER -

Surface facetting and polarity of alumina

Abstract

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