The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy

Mohammed Tareque Chowdhury, Reiji Takekawa, Yoshiki Iwai, Naoaki Kuwata, Junichi Kawamura

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    80% and 93% Li β-alumina single crystals are prepared from Na β-alumina by ion exchange method. Temperature dependent T1 relaxation data for both the samples indicates the presence of a local motion of Li ion in β-alumina crystal. T1 relaxation data of 23Na in Na β-alumina was also studied and compared with Li β-alumina. Temperature dependent quadrupole interaction was observed for 7Li in β-alumina crystal. A simple model suggested that, an out of plane position of Li ion may be possible with small energy imbalance which corresponds to the activation energy for local motion of Li ion. The T 1 relaxation data and the quadrupole data also indicate that mixed alkali effect might be present in the microscopic scale.

    Original languageEnglish
    Pages (from-to)482-485
    Number of pages4
    JournalSolid State Ionics
    Volume262
    DOIs
    Publication statusPublished - 2014 Sep 1

    Keywords

    • Ion exchange
    • Ionic conductivity
    • NMR spectroscopy
    • β-Alumina

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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