Year-end Sale % OFF 
Abstract
Spin pumping has become an established method for generating voltages using magnetic dynamics. The standard detection method of spin pumping is based on open-circuit voltage measurement. In this study, we demonstrate that it is also possible to measure the associated electric current by using macroscopic closed circuitry. Using variable load resistors connected in series to the sample, we quantified the charge currents and associated electric power dissipation with respect to the load resistance. Through basic circuit analysis, we can describe spin-pumping cells as a non-ideal voltage source or an equivalent current source with an internal resistor.
Highlights
In contrast to our study, their devices are a micro-fabricated closed circuit where spincurrents were generated through an electrical spin injection method
Instead of using an open circuit, we close the circuit with a load resistor which allows us to measure the generated charge current in a spin-pumping device using the inverse spin hall effect (ISHE)
Our study demonstrates the wide applicability of the closed-loop circuit measurements for spin pumping as it is not limited to lithographically-patterned nano-scaled devices, but is applicable to macroscopic spin pumping devices where no micro-fabrication steps are needed
Summary
In contrast to our study, their devices are a micro-fabricated closed circuit where spincurrents were generated through an electrical spin injection method. One of the dissipation mechanisms in a FM/ non-magnetic (NM) bilayer is to transfer angular momentum to electron spins in the NM layer where spin currents are generated.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
