Electric power transfer in spin-pumping experiments
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Authors
Rogdakis, K
Alfert, N
Srivastava, Anand
Cohen, LF
Kurebayashi, H
Publication Date
2018-01-01Journal Title
Applied Physics Express
ISSN
1882-0778
Volume
11
Issue
1
Type
Article
This Version
AM
Metadata
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Rogdakis, K., Alfert, N., Srivastava, A., Robinson, J., Blamire, M., Cohen, L., & Kurebayashi, H. (2018). Electric power transfer in spin-pumping experiments. Applied Physics Express, 11 (1)https://doi.org/10.7567/APEX.11.013004
Abstract
© 2018 The Japan Society of Applied Physics. 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.
Sponsorship
EPSRC (EP/N017242/1)
EPSRC (EP/P026311/1)
Identifiers
External DOI: https://doi.org/10.7567/APEX.11.013004
This record's URL: https://www.repository.cam.ac.uk/handle/1810/270527
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