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

    Fingerprint

    acetates
    disorders
    orbits
    anisotropy
    tunnels
    degrees of freedom
    quenching
    density functional theory
    oscillations
    electronics
    molecules

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)

    Cite this

    Park, K., Pederson, M. R., Baruah, T., Bernstein, N., Kortus, J., Richardson, S. L., ... 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

    Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate. / Park, Kyungwha; Pederson, Mark R.; Baruah, Tunna; Bernstein, Noam; Kortus, Jens; Richardson, Steven L.; Del Barco, Enrique; Kent, Andrew D.; Hill, Steve; Dalal, Naresh S.

    In: Journal of Applied Physics, Vol. 97, No. 10, 10M505, 15.05.2005.

    Research output: Contribution to journalArticle

    Park, K, Pederson, MR, Baruah, T, Bernstein, N, Kortus, J, Richardson, SL, Del Barco, E, Kent, AD, Hill, S & Dalal, NS 2005, 'Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate', Journal of Applied Physics, vol. 97, no. 10, 10M505. https://doi.org/10.1063/1.1847851
    Park, Kyungwha ; Pederson, Mark R. ; Baruah, Tunna ; Bernstein, Noam ; Kortus, Jens ; Richardson, Steven L. ; Del Barco, Enrique ; Kent, Andrew D. ; Hill, Steve ; Dalal, Naresh S. / Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate. In: Journal of Applied Physics. 2005 ; Vol. 97, No. 10.
    @article{ad95509c9ef54adf975fefdb88701b47,
    title = "Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate",
    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.",
    author = "Kyungwha Park and Pederson, {Mark R.} and Tunna Baruah and Noam Bernstein and Jens Kortus and Richardson, {Steven L.} and {Del Barco}, Enrique and Kent, {Andrew D.} and Steve Hill and Dalal, {Naresh S.}",
    year = "2005",
    month = "5",
    day = "15",
    doi = "10.1063/1.1847851",
    language = "English (US)",
    volume = "97",
    journal = "Journal of Applied Physics",
    issn = "0021-8979",
    publisher = "American Institute of Physics Publising LLC",
    number = "10",

    }

    TY - JOUR

    T1 - Incommensurate transverse anisotropy induced by disorder and spin-orbit-vibron coupling in Mn 12 acetate

    AU - Park, Kyungwha

    AU - Pederson, Mark R.

    AU - Baruah, Tunna

    AU - Bernstein, Noam

    AU - Kortus, Jens

    AU - Richardson, Steven L.

    AU - Del Barco, Enrique

    AU - Kent, Andrew D.

    AU - Hill, Steve

    AU - Dalal, Naresh S.

    PY - 2005/5/15

    Y1 - 2005/5/15

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=21044448094&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=21044448094&partnerID=8YFLogxK

    U2 - 10.1063/1.1847851

    DO - 10.1063/1.1847851

    M3 - Article

    VL - 97

    JO - Journal of Applied Physics

    JF - Journal of Applied Physics

    SN - 0021-8979

    IS - 10

    M1 - 10M505

    ER -