Aug 28 – 31, 2018
EPFL
Europe/Zurich timezone

【808】 Asymmetric domain wall nucleation in DMI coupled in-plane and out-of-plane magnetic wires

Aug 29, 2018, 3:30 PM
15m
CE 1 (EPFL)

CE 1

EPFL

Talk Magnetism and Spintronics at the Nanoscale Magnetism and Spintronics at the Nanoscale

Speaker

Phuong Dao

Description

Current-induced spin orbit torques are well established as a powerful method to manipulate magnetic thin films, with latest works demonstrating magnetization reversal down to the sub-ns scale. The reversal mechanism is a two-step process determined by domain wall nucleation and propagation. Recent work indicates that the domain nucleation process is a bottleneck for energy efficient switching. In this work we present a novel technique to fabricate coupled in-plane and out-of-plane magnetized lateral interfaces, where the Dzyaloshinskii–Moriya interaction lowers the energy barrier for domain wall nucleation and provides additional means of control over current-induced switching.

Primary authors

Phuong Dao Marvin Müller (Department of Materials, ETH Zürich) Zhaochu Luo (PSI) Manuel Baumgartner (ETH Zürich) Laura Heyderman (ETH Zurich - Paul Scherrer Institute) Prof. Pietro Gambardella (ETH Zurich)

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