Structure transition and magnetism of bcc-Ni nanowires

C. Han, S. Yang, K. G. Chang, P. P. Wang, Ri Ichi Murakami, X. P. Song

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Body-centered-cubic (bcc) Ni nanowires were successfully synthesized by multistep ac electro-deposition on anodic aluminum oxide templates. bcc-Ni is ferromagnetic with a lattice constant of 0.288 nm, and bcc-Ni to fcc-Ni phase transition occurs under heat treatment. Magnetic measurements suggest that the ferromagnetic transition of bcc-Ni nanowires involves a structure change evolving from bcc to fcc in the magnetic-ordering process. Furthermore, the processes of structure transition in bcc-Ni nanowires under the heating conditions were observed in situ using transmission electron microscopy. In addition, our work also establishes that fcc-Ni nanowires and bulk Ni have only a ferromagnetic transition at the Curie point, involving no crystal structure change.

    Original languageEnglish
    Pages (from-to)1004-1010
    Number of pages7
    JournalJournal of Materials Chemistry C
    Volume3
    Issue number5
    DOIs
    Publication statusPublished - Feb 7 2015

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Materials Chemistry

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