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We demonstrate here that ultrathin ferromagnetic Pt/Co/Pt films with perpendicular magnetic anisotropy exhibit a sizeable Dzyaloshinskii-Moriya interaction (DMI) effect. Such a DMI effect modifies the domain-wall (DW) energy density and…

Materials Science · Physics 2017-04-25 Soong-Geun Je , Duck-Ho Kim , Sang-Cheol Yoo , Byoung-Chul Min , Kyung-Jin Lee , Sug-Bong Choe

We have carried out measurements of domain wall dynamics in a Pt/Co/GdOx(t) wedge sample with perpendicular magnetic anisotropy. When driven by an easy-axis field Hz in the presence of an in-plane field Hx, the domain wall expansion along x…

Materials Science · Physics 2015-10-29 M. Vanatka , J. -C. Rojas-Sanchez , J. Vogel , M. Bonfim , A. Thiaville , S. Pizzini

We study the magnetic properties of perpendicularly magnetised Pt/Co/Ir thin films and investigate the domain wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultra-thin films. Measurements of the…

Mesoscale and Nanoscale Physics · Physics 2018-04-20 Philippa M. Shepley , Harry Tunnicliffe , Kowsar Shahbazi , Gavin Burnell , Thomas A. Moore

The orientation of a chiral magnetic domain wall in a racetrack determines its dynamical properties. In equilibrium, magnetic domain walls are expected to be oriented perpendicular to the stripe axis. We demonstrate the appearance of a…

We present an analytical theory of domain wall tilt due to a transverse in-plane magnetic field in a ferromagnetic nanostrip with out-of-plane anisotropy and Dzyaloshinskii-Moriya interaction (DMI). The theory treats the domain walls as…

Mesoscale and Nanoscale Physics · Physics 2017-10-17 Cyrill B. Muratov , Valeriy V. Slastikov , Alexander G. Kolesnikov , Oleg A. Tretiakov

We consider a thin ferromagnetic layer to which an external field or a current are applied along an in plane easy axis. The perpendicular hard axis anisotropy constant is large so that the out of plane magnetization component is smaller…

Mesoscale and Nanoscale Physics · Physics 2018-10-24 E. A. Cardenas , M. C. Depassier

The dynamics of domain walls in ultrathin ferromagnetic strips with perpendicular magnetic anisotropy is studied from both numerical and analytical micromagnetics. The influence of the interfacial Dzyaloshinskii-Moriya interaction…

Materials Science · Physics 2016-04-20 L. Sánchez-Tejerina , Ó. Alejos , E. Martínez , J. M. Muñoz

In this work, dynamics of chiral domain walls in long and narrow magnetic heterostructures based on non-centrosymmetric chiral magnets with bulk Dzyaloshinskii-Moriya interactions (DMI) and perpendicular magnetic anisotropy is…

Mesoscale and Nanoscale Physics · Physics 2022-02-02 Mei Li , Bin Xi , Jie Lu , Yongjun Liu

The interfacial Dzyaloshinskii-Moriya interaction (DMI) is important for chiral domain walls (DWs) and for stabilizing magnetic skyrmions. We study the effects of introducing increasing thicknesses of Ir, from zero to 2 nm, into a Pt/Co/Ta…

We show that the Dzyaloshinskii-Moriya interaction (DMI) can lead to a tilting of the domain wall (DW) surface in perpendicularly magnetized magnetic nanotracks when DW dynamics is driven by an easy axis magnetic field or a spin polarized…

Materials Science · Physics 2015-06-16 O. Boulle , S. Rohart , L. D. Buda-Prejbeanu , E. Jué , I. M. Miron , S. Pizzini , J. Vogel , G. Gaudin , A. Thiaville

The Dzyaloshinskii-Moriya interaction (DMI) is a chiral interaction that favors formation of domain walls. Recent experiments and ab initio calculations show that there are multiple ways to modify the strength of the interfacially induced…

Materials Science · Physics 2017-04-05 Jeroen Mulkers , Bartel Van Waeyenberge , Milorad V. Milošević

Recent experimental studies of magnetic domain expansion under easy-axis drive fields in materials with a perpendicular magnetic anisotropy have shown that the domain wall velocity is asymmetric as a function of an external in plane…

Mesoscale and Nanoscale Physics · Physics 2019-09-18 Dion M. F. Hartmann , Rembert A. Duine , Mariëlle J. Meijer , Henk J. M. Swagten , Reinoud Lavrijsen

The Dzyaloshinskii-Moriya interaction (DMI) in magnetic systems stabilizes spin textures with preferred chirality, applicable to next-generation memory and computing architectures. In perpendicularly magnetized heavy-metal/ferromagnet…

The domain wall dynamics driven by an out of plane magnetic field was measured for a series of magnetic trilayers with different strengths of the interfacial Dzyaloshinskii-Moriya interaction (DMI). The features of the field-driven domain…

Mesoscale and Nanoscale Physics · Physics 2021-07-20 J. Pena Gracia , A. Fassatoui , J. Vogel , A. Thiaville , S. Pizzini

The interfacial Dzyaloshinskii-Moriya interaction (DMI) of a heavy metal (HM)/ferromagnetic (FM) metal heterostructure is vital to the current-induced domain wall motion (CIDWM) at an ultrahigh velocity. However, strong DMI also tilts the…

Computational Physics · Physics 2018-12-18 Maokang Shen , Yue Zhang , Wei Luo , Long You , Xiaofei Yang

We study field-driven domain wall (DW) velocities in asymmetric multilayer stacks with perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction (DMI), both experimentally and by micromagnetic simulations. Using…

Mesoscale and Nanoscale Physics · Physics 2021-03-26 V. Krizakova , J. Pena Garcia , J. Vogel , N. Rougemaille , D. de Souza Chaves , S. Pizzini , A. Thiaville

The interfacial Dzyaloshinskii-Moriya interaction (DMI) has been shown to stabilize homochiral N\'eel-type domain walls in thin films with perpendicular magnetic anisotropy and as a result permit them to be propagated by a spin Hall torque.…

Mesoscale and Nanoscale Physics · Physics 2016-10-13 R. A. Khan , P. M. Shepley , A. Hrabec , A. W. J. Wells , B. Ocker , C. H. Marrows , T. A. Moore

Interfacial Dzyaloshinskii-Moriya interaction (DMI) is experimentally investigated in Pt/Co/Pt multilayer films under strain. A strong variation (from 0.1 to 0.8 mJ/m$^2$) of the DMI constant is demonstrated at $\pm 0.1\%$ in-plane uniaxial…

Materials Science · Physics 2020-04-22 N. S. Gusev , A. V. Sadovnikov , S. A. Nikitov , M. V. Sapozhnikov , O. G. Udalov

We analyze the electric current and magnetic field driven domain wall motion in perpendicularly magnetized ultrathin ferromagnetic films in the presence of interfacial Dzyaloshinskii-Moriya interaction and both out-of-plane and in-plane…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Valeriy V. Slastikov , Cyrill B. Muratov , Jonathan M. Robbins , Oleg A. Tretiakov

We study domain wall (DW) motion induced by spin waves (magnons) in the presence of Dzyaloshinskii-Moriya interaction (DMI). The DMI exerts a torque on the DW when spin waves pass through the DW, and this torque represents a linear momentum…

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