Coupled commensurate cation and charge modulation in the tunneled structure, Na0.40(2)MnO2
Coupled commensurate cation and charge modulation in the tunneled structure, Na0.40(2)MnO2
Na0.40(2)MnO2 belongs to a family of mixed Mn3+ and Mn4+ porous oxides that contains both octahedral and square pyramidal Mn–O units. Neutron and synchrotron radiation studies identify the presence of both sodium ordering (TNa ? 310 K) and Mn charge and orbital ordering. Below TNa, the centrosymmetric Pbam structure adopts an (ab 4c) supercell of Pnnm symmetry that accommodates a coupled commensurate modulation down the c-axis channels of both Na position and occupancy with Mn valence.
13950-13956
Kruk, Izabela
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Zajdel, Pawel
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van Beek, Wouter
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Bakaimi, Ioanna
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Lappas, Alexandros
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Stock, Chris
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Green, Mark A.
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7 September 2011
Kruk, Izabela
6dc4a2b9-4af2-48ab-bbb8-9229604e482d
Zajdel, Pawel
c0cae4fe-23b5-4e82-a3c3-a9fde100a943
van Beek, Wouter
40314aa2-4a17-4808-bfd6-f4ec09f58f5a
Bakaimi, Ioanna
3c4e7000-517c-41fa-84db-c45641125e4d
Lappas, Alexandros
3e727545-5524-4bb7-a240-1c1aef2ce62d
Stock, Chris
a5c912e7-d36b-43b8-8e53-416673e41c91
Green, Mark A.
82f1a0d9-e9b2-4557-9259-98ab93471721
Kruk, Izabela, Zajdel, Pawel, van Beek, Wouter, Bakaimi, Ioanna, Lappas, Alexandros, Stock, Chris and Green, Mark A.
(2011)
Coupled commensurate cation and charge modulation in the tunneled structure, Na0.40(2)MnO2.
Journal of the American Chemical Society, 133 (35), .
(doi:10.1021/ja109707q).
Abstract
Na0.40(2)MnO2 belongs to a family of mixed Mn3+ and Mn4+ porous oxides that contains both octahedral and square pyramidal Mn–O units. Neutron and synchrotron radiation studies identify the presence of both sodium ordering (TNa ? 310 K) and Mn charge and orbital ordering. Below TNa, the centrosymmetric Pbam structure adopts an (ab 4c) supercell of Pnnm symmetry that accommodates a coupled commensurate modulation down the c-axis channels of both Na position and occupancy with Mn valence.
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e-pub ahead of print date: 29 July 2011
Published date: 7 September 2011
Organisations:
Chemistry
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Local EPrints ID: 403342
URI: http://eprints.soton.ac.uk/id/eprint/403342
ISSN: 0002-7863
PURE UUID: b4303462-f972-488d-8f3c-a96d8e90d8e2
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Date deposited: 02 Dec 2016 14:59
Last modified: 15 Mar 2024 03:57
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Author:
Izabela Kruk
Author:
Pawel Zajdel
Author:
Wouter van Beek
Author:
Alexandros Lappas
Author:
Chris Stock
Author:
Mark A. Green
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