Low-temperature structural stability of Cd6M (M = Ho, Er, Tm and Lu) cubic crystalline approximants

Kazue Nishimoto, Takeru Sato, Miki Muraki, Ryuji Tamura

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    TEM observations and electrical resistivity measurements have been performed to investigate the low temperature stability, e.g. the occurrence of a phase transition, in Cd6M (M = Ho, Er, Tm and Lu) approximants, which have the smallest M atomic radii among a series of Cd6M compounds. Unlike other Cd6M compounds, no changes or anomalies were observed in selected-area electron diffraction patterns or in electrical resistivity down to 20 and 15 K, respectively. Therefore, we conclude that a phase transition does not occur in Cd6M (M = Ho, Er, Tm and Lu) and orientational ordering of the Cd4 tetrahedron is kinetically suppressed when the space inside the icosahedral cluster is reduced to a certain level.

    Original languageEnglish
    Pages (from-to)2587-2593
    Number of pages7
    JournalPhilosophical Magazine
    Volume91
    Issue number19-21
    DOIs
    Publication statusPublished - 2011 Jul 1

    Keywords

    • electron diffraction
    • icosahedral cluster
    • phase transition
    • quasicrystals

    ASJC Scopus subject areas

    • Condensed Matter Physics

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