125 citations · 520 across the 9 of their papers we have counts for
8 papers · 1 filter
Spin-orbit torque generated by amorphous FeSi
Cheng-Hsiang Hsu, Julie Karel, Niklas Roschewsky +5
While tremendous work has gone into spin-orbit torque and spin current generation, charge-to-spin conversion efficiency remains weak in silicon to date, generally stemming from the…
Electric-Field Control of the Interlayer Exchange Coupling for Magnetization Switching
Shehrin Sayed, Cheng-Hsiang Hsu, Niklas Roschewsky +2
We propose an electric-field-controlled mechanism for magnetization switching assisted solely by the interlayer-exchange coupling (IEC) between the fixed and the free magnets, whic…
Spin-Orbit Torque and Nernst Effect in Bi-Sb/Co Heterostructures
Niklas Roschewsky, Emily S. Walker, Praveen Gowtham +4
Harmonic measurements of the longitudinal and transverse voltages in Bi-Sb/Co bilayers are presented. A large second harmonic voltage signal due to the ordinary Nernst effect is ob…
Thickness Dependence of Spin-Orbit Torques in Ferrimagnetic GdFeCo Alloys
Niklas Roschewsky, Charles-Henri Lambert, Sayeef Salahuddin
So far, studies of spin-orbit torques (SOT) in ferromagnets with perpendicular magnetic anisotropy (PMA) have been restricted to ultra thin samples, while a systematic study of its…
Spin-Orbit Torques in ferrimagnetic GdFeCo Alloys
Niklas Roschewsky, Tomoya Matsumura, Suraj Cheema +4
The spin-orbit torque switching of ferrimagnetic Gd(FeCo) films was studied for both transition metal (TM)-rich and rare earth (RE)-rich configurations.…
Current heating induced spin Seebeck effect
Michael Schreier, Niklas Roschewsky, Erich Dobler +4
A new measurement technique for the spin Seebeck effect is presented, wherein the normal metal layer used for its detection is exploited simultaneously as a resistive heater and th…
Time resolved spin Seebeck effect experiments
Niklas Roschewsky, Michael Schreier, Akashdeep Kamra +7
In this Letter, we present the results of transient thermopower experiments, performed at room temperature on yttrium iron garnet/platinum bilayers. Upon application of a time-vary…
Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction
Alexander Boehnke, Marvin Walter, Niklas Roschewsky +6
Recently, several groups have reported spin-dependent thermoelectric effects in magnetic tunnel junctions. In this paper, we present a setup for time-resolved measurements of therm…