dc.identifier.uri |
http://dx.doi.org/10.15488/2241 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2267 |
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dc.contributor.author |
Wiedemann, Dennis
|
|
dc.contributor.author |
Indris, Sylvio
|
|
dc.contributor.author |
Meven, Martin
|
|
dc.contributor.author |
Pedersen, Björn
|
|
dc.contributor.author |
Boysen, Hans
|
|
dc.contributor.author |
Uecker, Reinhard
|
|
dc.contributor.author |
Heitjans, Paul
|
|
dc.contributor.author |
Lerch, Martin
|
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dc.date.accessioned |
2017-11-10T17:19:22Z |
|
dc.date.available |
2017-11-10T17:19:22Z |
|
dc.date.issued |
2016 |
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dc.identifier.citation |
Wiedemann, D.; Indris, S.; Meven, M.; Pedersen, B.; Boysen, H. et al.: Single-crystal neutron diffraction on γ-LiAlO2: Structure determination and estimation of lithium diffusion pathway. In: Zeitschrift für Kristallographie - Crystalline Materials 231 (2016), Nr. 3, S. 189-193. DOI: https://doi.org/10.1515/zkri-2015-1896 |
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dc.description.abstract |
γ-Lithium aluminum oxide is a paradigmatic example of an ultraslow lithium ion conductor. This characteristic plays a crucial role in its proposed and actual applications. Herein, we report on the outcome of single-crystal neutron diffraction studies at ambient and high temperature. Careful evaluation confirms the commonly assumed room-temperature structure as derived by powder neutron diffraction in 1965. At 1043 K, a split of the lithium position hints at the onset of intrinsic diffusion. Analysis of the negative scattering-length density using the maximum-entropy method (MEM) indicates a preference for a strongly curved diffusion pathway traversing octahedral voids between adjacent lithium sites. These results help to understand ultraslow lithium diffusion in well-ordered ionic solids on the microscopic scale and, ultimately, to establish structure-property relationships. © 2016 by De Gruyter. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Berlin : Walter de Gruyter |
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dc.relation.ispartofseries |
Zeitschrift für Kristallographie - Crystalline Materials 231 (2016), Nr. 3 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
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dc.subject |
anisotropic displacement parameters |
eng |
dc.subject |
diffusion pathways |
eng |
dc.subject |
high-temperature neutron diffraction |
eng |
dc.subject |
lithium aluminum oxide |
eng |
dc.subject |
maximum-entropy method |
eng |
dc.subject.ddc |
540 | Chemie
|
ger |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Single-crystal neutron diffraction on γ-LiAlO2: Structure determination and estimation of lithium diffusion pathway |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
21944946 |
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dc.relation.doi |
https://doi.org/10.1515/zkri-2015-1896 |
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dc.bibliographicCitation.issue |
3 |
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dc.bibliographicCitation.volume |
231 |
|
dc.bibliographicCitation.firstPage |
189 |
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dc.bibliographicCitation.lastPage |
193 |
|
dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|