What question did this study set out to answer?

To determine whether magnetization relaxation in a magnetic thin film can be controlled electrically using the spin Hall effect.

July 18, 2008Physical Review Letters

Electric Manipulation of Spin Relaxation Using the Spin Hall Effect

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Authors

KAKazuya AndoKeio University STS. TakahashiHirosaki University KHK. HariiNational Institutes for Quantum Science and Technology

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Implication

Experimental study demonstrates electrical modulation of spin relaxation in Ni81Fe19/Pt bilayers, indicating that spin Hall torque enables dynamic magnetic control without direct currents.

Key Points

To determine whether magnetization relaxation in a magnetic thin film can be controlled electrically using the spin Hall effect.
Fabricated a bilayer film composed of ferromagnetic permalloy (Ni81Fe19) and nonmagnetic platinum (Pt).
Applied an electrical current exclusively to the platinum layer to induce macroscopic spin transfer via the spin Hall effect.
Exerted spin torque across the entire magnetization of the Ni81Fe19 layer, modulating its magnetization relaxation rate.
Achieved electrical tuning of magnetization dynamics independent of film dimensions without directing electrical currents through the magnetic layer.

Cite This Study

Ando et al. (2008) studied this question.

synapsesocial.com/papers/69f72742481dfd9134d47b73 https://doi.org/10.1103/physrevlett.101.036601

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Implication

Experimental study demonstrates electrical modulation of spin relaxation in Ni81Fe19/Pt bilayers, indicating that spin Hall torque enables dynamic magnetic control without direct currents.

Electric Manipulation of Spin Relaxation Using the Spin Hall Effect

Discussion

Member takes

Implication

Key Points

Cite This Study

Electric Manipulation of Spin Relaxation Using the Spin Hall Effect

Discussion

Member takes

Implication

Key Points

Cite This Study

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