On November 16 at 14:00, Timothy Ziman from Institut Laue Langevin Theory Group will give us an on-line seminar entitled :
Skew scattering and the spin Hall effect in cooperatively ordering magnetic systems
The spin Hall effect is affected by the Coulomb interaction as well as spin–spin correlations in metals. I will discuss the impact on the spin Hall effect from cooperative effects, firstly in an itinerant ferromagnet where there is an anomaly near the Curie temperature originating from high-order spin fluctuations. The second case considered is a metallic spin glass, where exchange via slowly fluctuating magnetic moments may lead to the precession of an injected spin current. This decreases the net spin-charge conversion from skew scattering at temperatures below a value three or four times the freezing temperature.