Oxygen vacancy induced structural variations of exfoliated monolayer MnO2 sheets

Wang, Yong, Sun, Chenghua, Zou, Jin, Wang, Lianzhou, Smith, Sean, Lu, G. Q. and Cockayne, David J. H. (2010) Oxygen vacancy induced structural variations of exfoliated monolayer MnO2 sheets. Physical Review B: Condensed Matter and Materials Physics, 81 8: 081401-1-081401-4. doi:10.1103/PhysRevB.81.081401

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Author Wang, Yong
Sun, Chenghua
Zou, Jin
Wang, Lianzhou
Smith, Sean
Lu, G. Q.
Cockayne, David J. H.
Title Oxygen vacancy induced structural variations of exfoliated monolayer MnO2 sheets
Formatted title
Oxygen vacancy induced structural variations of exfoliated monolayer MnO2 sheets
Journal name Physical Review B: Condensed Matter and Materials Physics   Check publisher's open access policy
ISSN 1098-0121
1550-235X
Publication date 2010-02-15
Sub-type Article (original research)
DOI 10.1103/PhysRevB.81.081401
Open Access Status File (Publisher version)
Volume 81
Issue 8
Start page 081401-1
End page 081401-4
Total pages 4
Editor Peter D. Adams
Anthony M. Begley
Place of publication New York, NY, U.S.A.
Publisher American Physical Society
Collection year 2011
Language eng
Formatted abstract
We report findings on the structural stability of exfoliated monolayer MnO2 sheets. Our study reveals that monolayer MnO2 sheets display two specific kinds of structural modification under electron irradiation. An atomic reconstruction (2×1) and a phase of MnO, induced by ordered oxygen vacancies, were identified by transmission electron microscopy techniques and further characterized by comparison with density-functional theory calculations. These findings are expected to significantly broaden current knowledge of the structural stability of ultrathin layered sheets.
© 2010 The American Physical Society.
Keyword Walled carbon nanotubes
Nanosheet crystallites
Atomic-structure
Manganese oxide
Graphene
Reconstructions
Irradiation
Dynamics
Surface
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published under "Rapid Communications". The acceptance criteria for PRB Rapid Communications are comparable to those for Physical Review Letters. About 1/3 of papers submitted to the section are published as Rapids; many others are eventually published in other sections. Our high standards and rigorous review are not compromised by our attention to efficient processing and ensure that we continue to publish only the highest quality papers.

 
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Created: Sun, 21 Mar 2010, 00:01:29 EST