Sodium Ion Ordering in NaxCoO2

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dc.creatorZandbergen, H. W.
dc.creatorFoo, M. L.
dc.creatorXu, Q.
dc.creatorKumar, V.
dc.creatorCava, R. J.
dc.date2004-03-08
dc.date.accessioned2026-07-07T02:56:50Z
dc.date.available2026-07-07T02:56:50Z
dc.descriptionThe layered sodium cobalt oxide NaxCoO2 is studied by electron diffraction for a wide range of sodium contents, 0.15<x<0.75. An extensive series of ordered Na ion-Na vacancy superlattices is found beyond the simple hexagonal average structure. The most strongly developed superlattice is found for the composition Na0.5CoO2, which displays Co3+/Co4+ charge ordering at low temperatures. The structural principle for some of the observed ordering schemes, particularly near x=0.5, is, surprisingly, the presence of lines of Na ions and vacancies rather than simply maximized Na-Na separations.
dc.description16 pages,13 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0403206
dc.identifierhttp://arxiv.org/abs/cond-mat/0403206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23481
dc.subjectSuperconductivity
dc.titleSodium Ion Ordering in NaxCoO2
dc.typetext

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