Dynamics of Spin and Orbital Phase Transitions in YVO3

Dmitry A. Mazurenko, Agung A. Nugroho, Thomas T.M. Palstra, Paul H.M. van Loosdrecht

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    Abstract

    YVO3 exhibits a well separated sequence of orbital and spin order transitions at 200 and 116 K, followed by a combined spin-orbital reorientation at 77 K. It is shown that the spin order can be destroyed by a sufficiently strong optical pulse within less than 4 ps. In contrast, the orbital reordering transition from C-type to G-type orbital order is slower than 100 ps and goes via an intermediate nonthermal phase. We propose that the dynamics of phase transitions is subjected to symmetry relations between the associated phases.
    Original languageEnglish
    Article number245702
    Number of pages4
    JournalPhysical review letters
    Volume101
    DOIs
    Publication statusPublished - 12 Dec 2008

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