Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate

Kyungwha Park, Mark R. Pederson, Tunna Baruah, Noam Bernstein, Jens Kortus, Steven L. Richardson, Enrique Del Barco, Andrew D. Kent, Steve Hill, Naresh S. Dalal

    Research output: Contribution to journalArticle

    Abstract

    It has been shown within density-functional theory that in Mn12 acetate there are effects due to disorder by solvent molecules and a coupling between vibrational and electronic degrees of freedom. We calculate the in-plane principal axes of the second-order anisotropy caused by the second effect and compare them with those of the fourth-order anisotropy due to the first effect. We find that the two types of the principal axes are not commensurate with each other, which results in a complete quenching of the tunnel-splitting oscillation as a function of an applied transverse field.

    Original languageEnglish (US)
    Article number10M505
    JournalJournal of Applied Physics
    Volume97
    Issue number10
    DOIs
    StatePublished - May 15 2005

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Park, K., Pederson, M. R., Baruah, T., Bernstein, N., Kortus, J., Richardson, S. L., Del Barco, E., Kent, A. D., Hill, S., & Dalal, N. S. (2005). Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate. Journal of Applied Physics, 97(10), [10M505]. https://doi.org/10.1063/1.1847851