Direct Observation of Current-Induced Motion of a 3D Vortex Domain Wall in Cylindrical Nanowires | Zendy

Yurii P. Ivanov | Zendy; Andrey Chuvilin | Zendy; Sergei Lopatin | Zendy; Hanan Mohammed | Zendy; Jǘrgen Kosel | Zendy

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Direct Observation of Current-Induced Motion of a 3D Vortex Domain Wall in Cylindrical Nanowires

Author(s) -

Yurii P. Ivanov,

Andrey Chuvilin,

Sergei Lopatin,

Hanan Mohammed,

Jǘrgen Kosel

Publication year - 2017

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.7b03404

Subject(s) - nanowire , vortex , materials science , lorentz force , condensed matter physics , domain wall (magnetism) , current (fluid) , micromagnetics , current density , magnetic domain , domain (mathematical analysis) , magnetic field , electric current , mechanics , nanotechnology , magnetization , physics , mathematical analysis , mathematics , quantum mechanics , thermodynamics

The current-induced dynamics of 3D magnetic vortex domain walls in cylindrical Co/Ni nanowires are revealed experimentally using Lorentz microscopy and theoretically using micromagnetic simulations. We demonstrate that a spin-polarized electric current can control the reversible motion of 3D vortex domain walls, which travel with a velocity of a few hundred meters per second. This finding is a key step in establishing fast, high-density memory devices based on vertical arrays of cylindrical magnetic nanowires.

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