Magnetoelastic relaxations in EuTiO3

J. Schiemer, L. J. Spalek, S. S. Saxena, C. Panagopoulos, Takuro Katsufuji, M. A. Carpenter

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    The multiferroic properties of EuTiO3 are greatly enhanced when a sample is strained, signifying that coupling between strain and structural, magnetic or ferroelectric order parameters is extremely important. Here resonant ultrasound spectroscopy has been used to investigate strain coupling effects, as well as possible additional phase transitions, through their influence on elastic and anelastic relaxations that occur as a function of temperature between 2 and 300 K and with applied magnetic field up to 14 T. Antiferromagnetic ordering is accompanied by acoustic loss and softening, and a weak magnetoelastic effect is also associated with the change in magnetization direction below . Changes in loss due to the influence of magnetic field suggest the existence of magnetic defects which couple with strain and may play a role in pinning of ferroelastic twin walls.

    Original languageEnglish
    Article number57004
    JournalEPL
    Volume109
    Issue number5
    DOIs
    Publication statusPublished - 2015 Mar 1

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Schiemer, J., Spalek, L. J., Saxena, S. S., Panagopoulos, C., Katsufuji, T., & Carpenter, M. A. (2015). Magnetoelastic relaxations in EuTiO3 EPL, 109(5), [57004]. https://doi.org/10.1209/0295-5075/109/57004