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
II. What the spin is going on ? Rashba c. Diffusive Model for Rashba Torque Strong Rashba spin-‐orbit coupling: Dyakonov-‐Perel relaxaOon X. Wang C. OrCz Pauyac Intermediate Rashba spin-‐orbit coupling (Δ=αk): Fermi surface breathing E ± = 2 k 2 2m ± 2 " Δ % $ ' # 2 & C. OrCz, X. Wang, M. Chshiev, Manchon, APL 2013 +α 2 R k 2 + Δα R k sinθ sin( ϕ −ϕ k ) 24
II. What the spin is going on ? Rashba d. Anisotropic Damping Kambersky PRB 2007 α(θ 1 ) α(θ 2 ) See also Hankiewicz PRB 2007 Other source of anisotropic damping: Kim PRL 108, 217202 (2012) 25
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II. What the sp<strong>in</strong> is go<strong>in</strong>g on ? Rashba <br />
d. Anisotropic Damp<strong>in</strong>g <br />
Kambersky PRB 2007 <br />
α(θ 1 ) <br />
α(θ 2 ) <br />
See also Hankiewicz PRB 2007 <br />
Other source of anisotropic damp<strong>in</strong>g: Kim PRL 108, 217202 (2012) <br />
25
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