What question did this study set out to answer?

To establish a theoretical and experimental method for accurately quantifying spin Hall angles in nonmagnetic metals by separating spin Hall voltages from anisotropic magnetoresistance.

January 28, 2010Physical Review LettersOpen Access

Quantifying Spin Hall Angles from Spin Pumping: Experiments and Theory

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Authors

OMO. Mosendz JPJohn E. Pearson FFF. Y. Fradin

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Overview

Experimental study demonstrates quantitative determination of spin Hall angles in metallic bilayers using spin pumping, highlighting a scalable approach for spintronic materials.

Key Points

To establish a theoretical and experimental method for accurately quantifying spin Hall angles in nonmagnetic metals by separating spin Hall voltages from anisotropic magnetoresistance.
Integrated Ni80Fe20|normal metal bilayers (using Pt, Au, and Mo) into a coplanar waveguide to generate dc spin currents via ferromagnetic resonance spin pumping.
Measured transverse dc voltages and applied a newly developed theoretical framework to distinguish spin Hall effects from anisotropic magnetoresistance using voltage symmetries.
Quantified the spin Hall angles of platinum (Pt), gold (Au), and molybdenum (Mo) by isolating the spin-to-charge conversion component.
Demonstrated that symmetry-based voltage decomposition reliably extracts spin Hall contributions, allowing characterization of conductors with exceptionally small spin Hall angles.

Cite This Study

Mosendz et al. (2010) studied this question.

synapsesocial.com/papers/69f72742481dfd9134d47b72 https://doi.org/10.1103/physrevlett.104.046601

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January 28, 2010Physical Review LettersOpen Access

Quantifying Spin Hall Angles from Spin Pumping: Experiments and Theory

View Full Paper

Ask AI

Bookmark

Authors

OMO. Mosendz JPJohn E. Pearson FFF. Y. Fradin

Discussion

Member takes

Overview

Experimental study demonstrates quantitative determination of spin Hall angles in metallic bilayers using spin pumping, highlighting a scalable approach for spintronic materials.

Key Points

To establish a theoretical and experimental method for accurately quantifying spin Hall angles in nonmagnetic metals by separating spin Hall voltages from anisotropic magnetoresistance.
Integrated Ni80Fe20|normal metal bilayers (using Pt, Au, and Mo) into a coplanar waveguide to generate dc spin currents via ferromagnetic resonance spin pumping.
Measured transverse dc voltages and applied a newly developed theoretical framework to distinguish spin Hall effects from anisotropic magnetoresistance using voltage symmetries.
Quantified the spin Hall angles of platinum (Pt), gold (Au), and molybdenum (Mo) by isolating the spin-to-charge conversion component.
Demonstrated that symmetry-based voltage decomposition reliably extracts spin Hall contributions, allowing characterization of conductors with exceptionally small spin Hall angles.

Cite This Study

Mosendz et al. (2010) studied this question.

synapsesocial.com/papers/69f72742481dfd9134d47b72 https://doi.org/10.1103/physrevlett.104.046601

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