The spin to charge current conversion (SCCC) due to spin-orbit coupling (SOC) opens the way to manipulate the magnetization by electrical means. SCCC results either from bulk effects, in particular through Spin Hall Effect (SHE) [1-3], or from interfacial effects, for example in our recent experimental discovery of Rashba-Edelstein Effect (REE) . We have investigated the SCCC by SHE in metals such as Pt [1,2], Au and AuW . In the case of 2D systems, we recently demonstrated a large SCCC efficiency in Rashba type Ag/Bi interface . An even larger effect can be even anticipated if topological insulators are used.
We will present a practical application of this SCCC to control the magnetization due to the spin-orbit torque induced by SHE [5-8], and focus on the case of Pt/(Co/Ni)3/Al multilayers with perpendicular magnetization. Using both the anomalous Hall Effect and Kerr experiments in patterned Hall bars, we are able to establish a scenario for the reversal mechanism involving domain wall motions and spin-orbit torques induced by SHE in Pt.
 J-C. Rojas-Sanchez et al. PRL 112, 106602 (2014).  J.-C. Rojas-Sánchez et al. SPIE 9167, Spintronics VII, 916729 (2014).  P. Laczkowski et al. APL 104, 142403 (2014).  J C Rojas Sánchez et al. Nat. Comm. 4:2944 (2013).  A. V. Khvalkovskiy et al. PRB 87, 020402 (2013).  I. M. Miron et al. Nature 476, 189 (2011).  L. Liu et al. PRL 109, 096602 (2012).  N. Perez et al. APL 104, 092403 (2014).
Juan-Carlos Rojas-Sánchez, Joao Sampaio, Piotr Laczkowski, Nicolas Reyren, Cyrile Deranlot, Sophie Collin, Henri Jaffres, Alexandra Mougin, Albert Fert, and Jean-Marie George, "Electrical control of the perpendicular magnetization in Pt/[Co/Ni]3/Al multilayers (Presentation Recording)," Proc. SPIE 9551, Spintronics VIII, 955102 (Presented at SPIE Nanoscience + Engineering: August 09, 2015; Published: 5 October 2015); https://doi.org/10.1117/12.2190327.4519370524001.
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