Spin-Orbit Torque in Magnetic Bilayers - Spintronics Theory Group
Spin-Orbit Torque in Magnetic Bilayers - Spintronics Theory Group
Spin-Orbit Torque in Magnetic Bilayers - Spintronics Theory Group
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II. What the sp<strong>in</strong> is go<strong>in</strong>g on ? Rashba <br />
c. Diffusive Model for Rashba <strong>Torque</strong> <br />
X. Wang C. OrCz Pauyac <br />
3 Major Consequences <br />
Inverse sp<strong>in</strong> Galvanic effect <br />
(Edelste<strong>in</strong>) <br />
<strong>Sp<strong>in</strong></strong> Galvanic effect <br />
(see S<strong>in</strong>ova PRL 2004) <br />
Anisotropic <strong>Sp<strong>in</strong></strong> RelaxaOon <br />
(Dyakonov-‐Perel) <br />
<strong>Sp<strong>in</strong></strong> density is generated <br />
by the flow<strong>in</strong>g current <br />
Produces a sp<strong>in</strong> torque <br />
Non-‐equilibrium sp<strong>in</strong> density <br />
generates a charge current <br />
Impacts the AMR+AHE <br />
Induces anisotropic Damp<strong>in</strong>g <br />
Induces angular dependence <br />
Manchon and Zhang, Phys. Rev. B 78, 212405 (2008); 79, 094422 (2009) <br />
X. Wang and A. Manchon, Phys. Rev. Le.. 108, 117201 (2012). <br />
M. Dyakonov <br />
I. Perel <br />
23
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