Fast Li diffusion in crystalline LiBH4 due to reduced dimensionality: Frequency-dependent NMR spectroscopy

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dc.identifier.uri http://dx.doi.org/10.15488/4868
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/4911
dc.contributor.author Epp, V.
dc.contributor.author Wilkening, Martin
dc.date.accessioned 2019-05-27T08:55:29Z
dc.date.available 2019-05-27T08:55:29Z
dc.date.issued 2010
dc.identifier.citation Epp, V.; Wilkening, M.: Fast Li diffusion in crystalline LiBH4 due to reduced dimensionality - Frequency-dependent NMR spectroscopy. In: Physical Review B 82 (2010), Nr. 2, 020301. DOI: https://doi.org/10.1103/PhysRevB.82.020301
dc.description.abstract The hexagonal and orthorhombic form of lithium borohydride, LiBH4, are investigated by temperature and frequency-dependent nuclear magnetic resonance (NMR) spectroscopy. The local electronic structure and microscopic diffusion parameters are determined by recording both Li-6,Li-7 NMR spectra and spin-lattice relaxation (SLR) rates. The rates of the high-temperature flank of the SLR-NMR peaks of hexagonal LiBH4 clearly depend on resonance frequency which unequivocally reveals a low-dimensional diffusion process. Due to the very limited number of suitable model substances this makes lithium borohydride an extremely attractive material to study the effect of reduced dimensionality on Li dynamics. Most likely, the spatial confinement of Li hopping is also responsible for the very high ionic conductivity found for the hexagonal polymorph, recently. eng
dc.language.iso eng
dc.publisher College Park, MD : American Physical Society (APS)
dc.relation.ispartofseries Physical Review B 82 (2010), Nr. 2
dc.rights CC BY 3.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/3.0/
dc.subject Nuclear magnetic resonance eng
dc.subject layered-structured Li ion conductors eng
dc.subject material design eng
dc.subject.ddc 530 | Physik ger
dc.subject.ddc 540 | Chemie ger
dc.title Fast Li diffusion in crystalline LiBH4 due to reduced dimensionality: Frequency-dependent NMR spectroscopy
dc.type article
dc.type Text
dc.relation.essn 2469-9969
dc.relation.issn 2469-9950
dc.relation.doi https://doi.org/10.1103/PhysRevB.82.020301
dc.bibliographicCitation.issue 2
dc.bibliographicCitation.volume 82
dc.bibliographicCitation.firstPage 20301
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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