125 citations · 520 across the 9 of their papers we have counts for
9 papers
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.…
An all-electrical torque differential magnetometer operating under ambient conditions
Akashdeep Kamra, Stefan von Hoesslin, Niklas Roschewsky +5
An all-electrical torque differential magnetometry (also known as cantilever magnetometry) setup employing piezoelectric quartz tuning forks is demonstrated. The magnetometer can b…
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…