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Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque
Saba Karimeddiny, Thow Min Jerald Cham, Orion Smedley +2
Sagnac interferometry can provide a significant improvement in signal-to-noise ratio compared to conventional magnetic imaging based on the magneto-optical Kerr effect (MOKE). We s…
Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque
Saba Karimeddiny, Thow Min Cham, Daniel C. Ralph +1
We adapt Sagnac interferometry for magneto-optic Kerr effect measurements of spin-orbit-torque-induced magnetic tilting in thin-film magnetic samples. The high sensitivity of Sagna…
Resolving Discrepancies in Spin-Torque Ferromagnetic Resonance Measurements: Lineshape vs. Linewidth Analyses
Saba Karimeddiny, Daniel C. Ralph
When spin-orbit torques are measured using spin-torque ferromagnetic resonance (ST-FMR), two alternative ways of analyzing the results to extract the torque efficiencies -- linesha…
Transverse and Longitudinal Spin-Torque Ferromagnetic Resonance for Improved Measurements of Spin-Orbit Torques
Saba Karimeddiny, Joseph A. Mittelstaedt, Robert A. Buhrman +1
Spin-torque ferromagnetic resonance (ST-FMR) is a common method used to measure spin-orbit torques (SOTs) in heavy metal/ferromagnet bilayer structures. In the course of a measurem…
Strong, Temperature-Dependent Spin-Orbit Torques in Heavy Fermion YbAl
Neal D Reynolds, Shouvik Chatterjee, Gregory M. Stiehl +6
The use of current-generated spin-orbit torques[1] to drive magnetization dynamics is under investigation to enable a new generation of non-volatile, low-power magnetic memory. Pre…