Spin Order in FeCr2O4 Observed by Mössbauer Spectroscopy

Shin Nakamura, Akio Fuwa

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    57Fe Mössbauer spectroscopy has been conducted on a single crystal FeCr2O4, in order to examine Fe2+ spin order. By adding a slight compression along the cubic [001] axis during cooling through the transition temperatures, single domain states of tetragonal and orthorhombic phases were attained. In the ferrimagnetic phase below 65K, the spins are in the c-plain of the orthorhombic phase and directed at about 45° from the a-axis. With decreasing temperature, the spins tend to rotate toward the a-axis. Below 35K in the spiral magnetic phase, the spins are directed in two directions in the c-plane; one is directed at about 60° from the a-axis, while the other is directed along the a-axis. This indicates that more complicated spin order than a simple cone conical structure is realized.

    Original languageEnglish
    Pages (from-to)747-754
    Number of pages8
    JournalUnknown Journal
    Volume75
    DOIs
    Publication statusPublished - 2015

    Keywords

    • Fe Mössbauer spectroscopy
    • FeCrO
    • ferrimagnet
    • Jahn-Teller effect
    • single domain crystal
    • spiral magnet

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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