Magnetoelectric Coupling in a Quantum Spin Ladder

ORAL

Abstract

We investigated the optical properties and magnetization of (2,3-dmpyH)$_2$CuBr$_4$, an antiferromagnetic quantum spin ladder with strong rail interactions. It is similar to the copper oxides, yet its modest exchange interactions allows it to be saturated at 29 T, whereas copper oxides require a much higher field. In the end, we were able to see that the field dependent integrated absorption difference tracks the magnetization, demonstrating that the structure is sensitive to the ferromagnetic transition.

*This work is supported by the National Science Foundation

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Authors

  • Jessica White

    • University of Tennessee

  • Janice Musfeldt

    • University of Tennessee, Knoxville
    • University of Tennessee

  • Scott Crooker

    • NHMFL, Los Alamos
    • National High Magnetic Field Lab, Los Alamos.
    • Los Alamos National Laboratory

  • John Singleton

    • National High Magnetic Field Laboratory
    • Los Alamos National Laboratory

  • Ross McDonald

    • NHMFL-Los Alamos
    • National High Magnetic Field Laboratory
    • Los Alamos National Laboratory

  • Chris Landee

    • Clark University

  • Mark Turnbull

    • Clark University

  • Hans Christen

    • Oak Ridge National Laboratory