Dynamic susceptibility study of YFexAl12-x (4 <= x <= 5)

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Abstract

Linear and nonlinear susceptibility measurements have been performed in YFexAl12-x (x = 4, 4.7 and 5) intermetallic compounds. This study confirms that long-range order only takes place below the transition temperature values, T-c, previously detected by magnetization and Mossbauer data. Antiferromagnetic interactions are dominant for YFe4Al8. however the enhancement of the magnetic susceptibility with iron content evidences that a ferromagnetic-type ordering with increasing strength develops with the replacement of aluminum by iron atoms. The coexistence of competing antifierromagnetic and ferromagnetic interactions gives rise to magnetic frustration, leading to a complex magnetic behaviour dependent on applied field and temperature. For all compositions, including the ordered YFe4Al8, there is evidence of uncorrelated iron-rich nanoclusters with short-range ferromagnetic-like order above T-c. (C) 2008 Elsevier B.V. All rights reserved.
Original languageUnknown
Pages (from-to)23-26
JournalJournal Of Alloys And Compounds
Volume477
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2009

Keywords

    Cite this

    @article{54f6abb587bc4a69b2ca9748d2c75928,
    title = "Dynamic susceptibility study of YFexAl12-x (4 <= x <= 5)",
    abstract = "Linear and nonlinear susceptibility measurements have been performed in YFexAl12-x (x = 4, 4.7 and 5) intermetallic compounds. This study confirms that long-range order only takes place below the transition temperature values, T-c, previously detected by magnetization and Mossbauer data. Antiferromagnetic interactions are dominant for YFe4Al8. however the enhancement of the magnetic susceptibility with iron content evidences that a ferromagnetic-type ordering with increasing strength develops with the replacement of aluminum by iron atoms. The coexistence of competing antifierromagnetic and ferromagnetic interactions gives rise to magnetic frustration, leading to a complex magnetic behaviour dependent on applied field and temperature. For all compositions, including the ordered YFe4Al8, there is evidence of uncorrelated iron-rich nanoclusters with short-range ferromagnetic-like order above T-c. (C) 2008 Elsevier B.V. All rights reserved.",
    keywords = "mn, alloys, glass, Spin, magnetic-properties, coexistence, single-crystals, lu, Intermetallic, dynamics, Magnetic, yfe4al8, compounds, mossbauer-spectroscopy, neutron-diffraction, measurements",
    author = "Venceslau, {Susana Isabel dos Santos Silva S{\'e}rio}",
    year = "2009",
    month = "1",
    day = "1",
    doi = "10.1016/j.jallcom.2008.10.068",
    language = "Unknown",
    volume = "477",
    pages = "23--26",
    journal = "Journal Of Alloys And Compounds",
    issn = "0925-8388",
    publisher = "Elsevier Science",
    number = "1-2",

    }

    Dynamic susceptibility study of YFexAl12-x (4 <= x <= 5). / Venceslau, Susana Isabel dos Santos Silva Sério.

    In: Journal Of Alloys And Compounds, Vol. 477, No. 1-2, 01.01.2009, p. 23-26.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Dynamic susceptibility study of YFexAl12-x (4 <= x <= 5)

    AU - Venceslau, Susana Isabel dos Santos Silva Sério

    PY - 2009/1/1

    Y1 - 2009/1/1

    N2 - Linear and nonlinear susceptibility measurements have been performed in YFexAl12-x (x = 4, 4.7 and 5) intermetallic compounds. This study confirms that long-range order only takes place below the transition temperature values, T-c, previously detected by magnetization and Mossbauer data. Antiferromagnetic interactions are dominant for YFe4Al8. however the enhancement of the magnetic susceptibility with iron content evidences that a ferromagnetic-type ordering with increasing strength develops with the replacement of aluminum by iron atoms. The coexistence of competing antifierromagnetic and ferromagnetic interactions gives rise to magnetic frustration, leading to a complex magnetic behaviour dependent on applied field and temperature. For all compositions, including the ordered YFe4Al8, there is evidence of uncorrelated iron-rich nanoclusters with short-range ferromagnetic-like order above T-c. (C) 2008 Elsevier B.V. All rights reserved.

    AB - Linear and nonlinear susceptibility measurements have been performed in YFexAl12-x (x = 4, 4.7 and 5) intermetallic compounds. This study confirms that long-range order only takes place below the transition temperature values, T-c, previously detected by magnetization and Mossbauer data. Antiferromagnetic interactions are dominant for YFe4Al8. however the enhancement of the magnetic susceptibility with iron content evidences that a ferromagnetic-type ordering with increasing strength develops with the replacement of aluminum by iron atoms. The coexistence of competing antifierromagnetic and ferromagnetic interactions gives rise to magnetic frustration, leading to a complex magnetic behaviour dependent on applied field and temperature. For all compositions, including the ordered YFe4Al8, there is evidence of uncorrelated iron-rich nanoclusters with short-range ferromagnetic-like order above T-c. (C) 2008 Elsevier B.V. All rights reserved.

    KW - mn

    KW - alloys

    KW - glass

    KW - Spin

    KW - magnetic-properties

    KW - coexistence

    KW - single-crystals

    KW - lu

    KW - Intermetallic

    KW - dynamics

    KW - Magnetic

    KW - yfe4al8

    KW - compounds

    KW - mossbauer-spectroscopy

    KW - neutron-diffraction

    KW - measurements

    U2 - 10.1016/j.jallcom.2008.10.068

    DO - 10.1016/j.jallcom.2008.10.068

    M3 - Article

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    JO - Journal Of Alloys And Compounds

    JF - Journal Of Alloys And Compounds

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    ER -