Terahertz Spectroscopy of Mn12-Acetate

ORAL

Abstract

Mn12-acetate is a single-molecule magnet with spin S = 10. It has been observed to exhibit quantum tunneling of the magnetization. The energy levels associated with this quantum tunneling have been probed using time-domain terahertz spectroscopy. We observe absorptions corresponding to excitations between spin states, but we also observe what seems to be emission at nearby frequencies. The emission frequency changes with applied field in the same way that absorptions do, but its explanation is unclear.

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Authors

  • Claire Watts

    Colgate University

  • Beth Parks

    Colgate University

  • Chris Beedle

    University of California, San Diego, USA, Department of Chemistry and Biochemistry, UCSD, UC San Diego

  • David Hendrickson

    University of California, San Diego, USA, Department of Chemistry and Biochemistry, UCSD, UC San Diego