Crossover behavior of the crystal structure and the relation to magnetism in perovskite RTiO3

K. Takubo, M. Shimuta, J. E. Kim, K. Kato, M. Takata, Takuro Katsufuji

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    We found that a crossover behavior of the crystal structure at high temperatures dominates the magnetic state at low temperatures in the series of R TiO3 (R is rare earth). At the crossover temperature, which exist only in the samples that become antiferromagnetic at lower temperatures, the temperature derivative of lattice constants changes its sign, and the crossover temperature approaches zero as the Neel temperature approaches zero in the phase diagram of the ionic radius of R vs temperature. This result indicates that the orbital state of the Ti ion dominates the low-temperature magnetic state in R TiO3.

    Original languageEnglish
    Article number020401
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume82
    Issue number2
    DOIs
    Publication statusPublished - 2010 Jul 6

    Fingerprint

    Magnetism
    Perovskite
    crossovers
    Crystal structure
    crystal structure
    Temperature
    temperature
    neel temperature
    rare earth elements
    phase diagrams
    orbitals
    Neel temperature
    radii
    perovskite
    Rare earths
    Lattice constants
    Phase diagrams
    ions
    Ions
    Derivatives

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Crossover behavior of the crystal structure and the relation to magnetism in perovskite RTiO3 . / Takubo, K.; Shimuta, M.; Kim, J. E.; Kato, K.; Takata, M.; Katsufuji, Takuro.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 2, 020401, 06.07.2010.

    Research output: Contribution to journalArticle

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    AU - Kato, K.

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    AU - Katsufuji, Takuro

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