Perpendicular magnetization reversal in Pt/[Co/Ni]3/Al multilayers via the spin Hall effect of Pt

J. C. Rojas-Sánchez; P. Laczkowski; J. Sampaio; S. Collin; K. Bouzehouane; N. Reyren; H. Jaffrès; A. Mougin; J. M. George

doi:10.1063/1.4942672

Perpendicular magnetization reversal in Pt/[Co/Ni]₃/Al multilayers via the spin Hall effect of Pt

J. C. Rojas-Sánchez, P. Laczkowski, J. Sampaio, S. Collin, K. Bouzehouane, N. Reyren, H. Jaffrès, A. Mougin, J. M. George

Research output: Contribution to journal › Article › peer-review

Abstract

We experimentally investigate the current-induced magnetization reversal in Pt/[Co/Ni]₃/Al multilayers combining the anomalous Hall effect and magneto-optical Kerr effect techniques in crossbar geometry. The magnetization reversal occurs through nucleation and propagation of a domain of opposite polarity for a current density of the order of 3 × 10¹¹ A/m². In these experiments, we demonstrate a full control of each stage: (i) the Ørsted field controls the domain nucleation and (ii) domain-wall propagation occurs by spin torque from the Pt spin Hall effect. This scenario requires an in-plane magnetic field to tune the domain wall center orientation along the current for efficient domain wall propagation. Indeed, as nucleated, domain walls are chiral and Neél-like due to the interfacial Dzyaloshinskii-Moriya interaction.

Original language	English
Article number	082406
Journal	Applied Physics Letters
Volume	108
Issue number	8
DOIs	https://doi.org/10.1063/1.4942672
Publication status	Published - 22 Feb 2016
Externally published	Yes

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title = "Perpendicular magnetization reversal in Pt/[Co/Ni]3/Al multilayers via the spin Hall effect of Pt",

abstract = "We experimentally investigate the current-induced magnetization reversal in Pt/[Co/Ni]3/Al multilayers combining the anomalous Hall effect and magneto-optical Kerr effect techniques in crossbar geometry. The magnetization reversal occurs through nucleation and propagation of a domain of opposite polarity for a current density of the order of 3 × 1011 A/m2. In these experiments, we demonstrate a full control of each stage: (i) the {\O}rsted field controls the domain nucleation and (ii) domain-wall propagation occurs by spin torque from the Pt spin Hall effect. This scenario requires an in-plane magnetic field to tune the domain wall center orientation along the current for efficient domain wall propagation. Indeed, as nucleated, domain walls are chiral and Ne{\'e}l-like due to the interfacial Dzyaloshinskii-Moriya interaction.",

author = "Rojas-S{\'a}nchez, \{J. C.\} and P. Laczkowski and J. Sampaio and S. Collin and K. Bouzehouane and N. Reyren and H. Jaffr{\`e}s and A. Mougin and George, \{J. M.\}",

note = "Publisher Copyright: {\textcopyright} 2016 AIP Publishing LLC.",

year = "2016",

month = feb,

day = "22",

doi = "10.1063/1.4942672",

language = "English",

volume = "108",

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TY - JOUR

T1 - Perpendicular magnetization reversal in Pt/[Co/Ni]3/Al multilayers via the spin Hall effect of Pt

AU - Rojas-Sánchez, J. C.

AU - Laczkowski, P.

AU - Sampaio, J.

AU - Collin, S.

AU - Bouzehouane, K.

AU - Reyren, N.

AU - Jaffrès, H.

AU - Mougin, A.

AU - George, J. M.

PY - 2016/2/22

Y1 - 2016/2/22

N2 - We experimentally investigate the current-induced magnetization reversal in Pt/[Co/Ni]3/Al multilayers combining the anomalous Hall effect and magneto-optical Kerr effect techniques in crossbar geometry. The magnetization reversal occurs through nucleation and propagation of a domain of opposite polarity for a current density of the order of 3 × 1011 A/m2. In these experiments, we demonstrate a full control of each stage: (i) the Ørsted field controls the domain nucleation and (ii) domain-wall propagation occurs by spin torque from the Pt spin Hall effect. This scenario requires an in-plane magnetic field to tune the domain wall center orientation along the current for efficient domain wall propagation. Indeed, as nucleated, domain walls are chiral and Neél-like due to the interfacial Dzyaloshinskii-Moriya interaction.

AB - We experimentally investigate the current-induced magnetization reversal in Pt/[Co/Ni]3/Al multilayers combining the anomalous Hall effect and magneto-optical Kerr effect techniques in crossbar geometry. The magnetization reversal occurs through nucleation and propagation of a domain of opposite polarity for a current density of the order of 3 × 1011 A/m2. In these experiments, we demonstrate a full control of each stage: (i) the Ørsted field controls the domain nucleation and (ii) domain-wall propagation occurs by spin torque from the Pt spin Hall effect. This scenario requires an in-plane magnetic field to tune the domain wall center orientation along the current for efficient domain wall propagation. Indeed, as nucleated, domain walls are chiral and Neél-like due to the interfacial Dzyaloshinskii-Moriya interaction.

U2 - 10.1063/1.4942672

DO - 10.1063/1.4942672

M3 - Article

AN - SCOPUS:84959450390

SN - 0003-6951

VL - 108

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 082406

ER -

Perpendicular magnetization reversal in Pt/[Co/Ni]3/Al multilayers via the spin Hall effect of Pt

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Perpendicular magnetization reversal in Pt/[Co/Ni]₃/Al multilayers via the spin Hall effect of Pt