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Proceedings Paper

Electrical control of the perpendicular magnetization in Pt/[Co/Ni]3/Al multilayers (Presentation Recording)
Author(s): Juan-Carlos Rojas-Sánchez; Joao Sampaio; Piotr Laczkowski; Nicolas Reyren; Cyrile Deranlot; Sophie Collin; Henri Jaffres; Alexandra Mougin; Albert Fert; Jean-Marie George
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Paper Abstract

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) [4]. We have investigated the SCCC by SHE in metals such as Pt [1,2], Au and AuW [3]. In the case of 2D systems, we recently demonstrated a large SCCC efficiency in Rashba type Ag/Bi interface [4]. 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. [1] J-C. Rojas-Sanchez et al. PRL 112, 106602 (2014). [2] J.-C. Rojas-Sánchez et al. SPIE 9167, Spintronics VII, 916729 (2014). [3] P. Laczkowski et al. APL 104, 142403 (2014). [4] J C Rojas Sánchez et al. Nat. Comm. 4:2944 (2013). [5] A. V. Khvalkovskiy et al. PRB 87, 020402 (2013). [6] I. M. Miron et al. Nature 476, 189 (2011). [7] L. Liu et al. PRL 109, 096602 (2012). [8] N. Perez et al. APL 104, 092403 (2014).

Paper Details

Date Published: 5 October 2015
PDF: 1 pages
Proc. SPIE 9551, Spintronics VIII, 955102 (5 October 2015); doi: 10.1117/12.2190327
Show Author Affiliations
Juan-Carlos Rojas-Sánchez, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Joao Sampaio, Univ. Paris-Sud 11 (France)
Piotr Laczkowski, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Nicolas Reyren, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Cyrile Deranlot, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Sophie Collin, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Henri Jaffres, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Alexandra Mougin, Univ. Paris-Sud 11 (France)
Albert Fert, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)
Jean-Marie George, Unité Mixte de Physique CNRS/Thales (France)
Univ. Paris-Sud 11 (France)


Published in SPIE Proceedings Vol. 9551:
Spintronics VIII
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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