Spin Order in FeCr2O4 Observed by Mössbauer Spectroscopy

Shin Nakamura, Akio Fuwa

    Research output: Contribution to journalArticle

    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

    Fingerprint

    spectroscopy
    plains
    cones
    transition temperature
    cooling
    single crystals
    temperature

    Keywords

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

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Spin Order in FeCr2O4 Observed by Mössbauer Spectroscopy. / Nakamura, Shin; Fuwa, Akio.

    In: Unknown Journal, Vol. 75, 2015, p. 747-754.

    Research output: Contribution to journalArticle

    Nakamura, Shin ; Fuwa, Akio. / Spin Order in FeCr2O4 Observed by Mössbauer Spectroscopy. In: Unknown Journal. 2015 ; Vol. 75. pp. 747-754.
    @article{4b6c8d984bbf4177b6cf94734f611a6c,
    title = "Spin Order in FeCr2O4 Observed by M{\"o}ssbauer Spectroscopy",
    abstract = "57Fe M{\"o}ssbauer 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.",
    keywords = "Fe M{\"o}ssbauer spectroscopy, FeCrO, ferrimagnet, Jahn-Teller effect, single domain crystal, spiral magnet",
    author = "Shin Nakamura and Akio Fuwa",
    year = "2015",
    doi = "10.1016/j.phpro.2015.12.097",
    language = "English",
    volume = "75",
    pages = "747--754",
    journal = "Nuclear Physics A",
    issn = "0375-9474",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - Spin Order in FeCr2O4 Observed by Mössbauer Spectroscopy

    AU - Nakamura, Shin

    AU - Fuwa, Akio

    PY - 2015

    Y1 - 2015

    N2 - 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.

    AB - 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.

    KW - Fe Mössbauer spectroscopy

    KW - FeCrO

    KW - ferrimagnet

    KW - Jahn-Teller effect

    KW - single domain crystal

    KW - spiral magnet

    UR - http://www.scopus.com/inward/record.url?scp=84974686108&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84974686108&partnerID=8YFLogxK

    U2 - 10.1016/j.phpro.2015.12.097

    DO - 10.1016/j.phpro.2015.12.097

    M3 - Article

    VL - 75

    SP - 747

    EP - 754

    JO - Nuclear Physics A

    JF - Nuclear Physics A

    SN - 0375-9474

    ER -