Structure analysis and electrical resistivity of the high- And lowerature phases of NaPd3Ge2 single crystal

Takahiro Yamada, Kohei Aiba, Daigorou Hirai, Zenji Hiroi, Hisanori Yamane

    研究成果: Article査読

    抄録

    Rod-shaped single crystals of NaPd3Ge2 with a length of ∼1 mm were grown using the self-flux method. The electrical resistivity exhibits a metal-like temperature dependence with a kink at 115 K, which is due to a structural phase transition not observed in the previous study using polycrystalline samples. The higherature phase of NaPd3Ge2 crystallizes in an orthorhombic structure of the space group Imma, while the lowerature phase is isostructural to NaPd3Si2 (space group: Imm2) as determined by the single-crystal X-ray diffraction analyses at 90 K. The density of states and total energies obtained by the density functional theory calculations reveal that both phases are metallic, and the lowerature structure is more stable.

    本文言語English
    論文番号SFFC03
    ジャーナルJapanese journal of applied physics
    59
    SF
    DOI
    出版ステータスPublished - 2020 4月 1

    ASJC Scopus subject areas

    • 工学(全般)
    • 物理学および天文学(全般)

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