Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate

E. Del Barco, A. D. Kent, E. M. Rumberger, D. N. Hendrickson, G. Christou

    Research output: Contribution to journalArticle

    Abstract

    The average fourfold symmetry of magnetic quantum tunneling (MQT) in Mn12-acerate was studied and found to be due to equal populations of isomers with biaxial anisotropy that have orthogonal medium magnetic axes. Measurements of the tunneling probability versus transverse field showed evidence for Berry phase effects probably due to a combination of second and fourth order transverse magnetic anisotropies. The results illustrate how subtle changes in the molecule environment can modulate magnetic anisotropy and magnetic quantum tunneling.

    Original languageEnglish (US)
    JournalPhysical Review Letters
    Volume91
    Issue number4
    StatePublished - Jul 25 2003

    Fingerprint

    acetates
    magnets
    anisotropy
    symmetry
    molecules
    isomers

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Del Barco, E., Kent, A. D., Rumberger, E. M., Hendrickson, D. N., & Christou, G. (2003). Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate. Physical Review Letters, 91(4).

    Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate. / Del Barco, E.; Kent, A. D.; Rumberger, E. M.; Hendrickson, D. N.; Christou, G.

    In: Physical Review Letters, Vol. 91, No. 4, 25.07.2003.

    Research output: Contribution to journalArticle

    Del Barco, E, Kent, AD, Rumberger, EM, Hendrickson, DN & Christou, G 2003, 'Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate', Physical Review Letters, vol. 91, no. 4.
    Del Barco E, Kent AD, Rumberger EM, Hendrickson DN, Christou G. Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate. Physical Review Letters. 2003 Jul 25;91(4).
    Del Barco, E. ; Kent, A. D. ; Rumberger, E. M. ; Hendrickson, D. N. ; Christou, G. / Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate. In: Physical Review Letters. 2003 ; Vol. 91, No. 4.
    @article{2de2ca36538746628a883d7cc37a9a34,
    title = "Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate",
    abstract = "The average fourfold symmetry of magnetic quantum tunneling (MQT) in Mn12-acerate was studied and found to be due to equal populations of isomers with biaxial anisotropy that have orthogonal medium magnetic axes. Measurements of the tunneling probability versus transverse field showed evidence for Berry phase effects probably due to a combination of second and fourth order transverse magnetic anisotropies. The results illustrate how subtle changes in the molecule environment can modulate magnetic anisotropy and magnetic quantum tunneling.",
    author = "{Del Barco}, E. and Kent, {A. D.} and Rumberger, {E. M.} and Hendrickson, {D. N.} and G. Christou",
    year = "2003",
    month = "7",
    day = "25",
    language = "English (US)",
    volume = "91",
    journal = "Physical Review Letters",
    issn = "0031-9007",
    publisher = "American Physical Society",
    number = "4",

    }

    TY - JOUR

    T1 - Symmetry of magnetic quantum tunneling in single molecule magnet Mn12-acetate

    AU - Del Barco, E.

    AU - Kent, A. D.

    AU - Rumberger, E. M.

    AU - Hendrickson, D. N.

    AU - Christou, G.

    PY - 2003/7/25

    Y1 - 2003/7/25

    N2 - The average fourfold symmetry of magnetic quantum tunneling (MQT) in Mn12-acerate was studied and found to be due to equal populations of isomers with biaxial anisotropy that have orthogonal medium magnetic axes. Measurements of the tunneling probability versus transverse field showed evidence for Berry phase effects probably due to a combination of second and fourth order transverse magnetic anisotropies. The results illustrate how subtle changes in the molecule environment can modulate magnetic anisotropy and magnetic quantum tunneling.

    AB - The average fourfold symmetry of magnetic quantum tunneling (MQT) in Mn12-acerate was studied and found to be due to equal populations of isomers with biaxial anisotropy that have orthogonal medium magnetic axes. Measurements of the tunneling probability versus transverse field showed evidence for Berry phase effects probably due to a combination of second and fourth order transverse magnetic anisotropies. The results illustrate how subtle changes in the molecule environment can modulate magnetic anisotropy and magnetic quantum tunneling.

    UR - http://www.scopus.com/inward/record.url?scp=0041379808&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0041379808&partnerID=8YFLogxK

    M3 - Article

    VL - 91

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 4

    ER -