Dynamics of spin valves investigated using Magneto-Optical Kerr Effect Spectroscopy

ORAL

Abstract

Through an all-optical approach, we are investigating the spin dynamics in different spin torque based structures. Using pump-probe Time-Resolved Magneto-Optical Kerr Effect (TR-MOKE) spectroscopy, we are able to monitor the ultrafast magnon propagation on a sub-picosecond timescale as well as the longer lived oscillations and demagnetization. This represents a recent efforts to realize magnon induced spin torque using an all optical method.

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Authors

  • Christopher Stevens

    University of South Florida, Univ of South Florida

  • Jagannath Paul

    University of South Florida, Univ of South Florida

  • Prasenjit Dey

    University of South Florida, Univ of South Florida

  • Casey Miller

    Rochester Institute of Technology

  • Stephen McGill

    National High Magnetic Field Laboratory, National High Magnetic Field Lab, FSU, NHMFL, Florida, National High Magnetic Field Lab. \& Dept. Physics, Florida State Univ., National High Magnetic Field Lab, Florida state University, National High Magnetic Field Lab, florida

  • Denis Karaiskaj

    University of South Florida, Univ of South Florida