Two-dimensional THz Spectroscopy Of Multiferroic BiFeO3

Keynote (Chem 3)

Fri, 13 Nov 2020 12:00am to 12:30am

Room: Olmstead

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Multiferroic materials exhibit coupling between spin, lattice, and electronic degrees of freedom, and the ability to enhance these interactions to drive multiferroic properties may be the key to future high-speed, low-power technologies. We apply two-dimensional (2D) terahertz (THz) spectroscopy to examine these couplings in multiferroic BiFeO3. With extreme excitation using high-field THz light, 2D THz spectroscopy can reveal how anharmonic phonon-magnon coupling results in coherent energy transfer between modes and can potentially lead to experimental extraction of phonon-magnon coupling constants.

Presenters and Authors Info

Presenter: Anonymous

Authors: Knighton, Brittany; Nielson, Megan F.; Alejandro, Aldair; Davis, Lauren M.; Hardy, R. Tanner; Lee, Min-Cheol; Chen, Aiping; Prasankumar, Rohit P.; Johnson, Jeremy A.

Brigham Young University, Los Alamos National Laboratory