Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction | Zendy

Yicheng Guan | Zendy; Tomohiro Koyama | Zendy; Daichi Chiba | Zendy

Open Access

Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction

Author(s) -

Yicheng Guan,

Tomohiro Koyama,

Daichi Chiba

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4986264

Subject(s) - condensed matter physics , domain wall (magnetism) , sign (mathematics) , current (fluid) , perpendicular , physics , stack (abstract data type) , palladium , motion (physics) , spin (aerodynamics) , magnetic domain , torque , materials science , chemistry , magnetic field , geometry , magnetization , classical mechanics , thermodynamics , quantum mechanics , mathematical analysis , biochemistry , mathematics , computer science , programming language , catalysis

The authors have investigated magnetic domain wall (DW) motion induced by electrical current in the perpendicularly magnetized Pt/Co/Pd and Pd/Co/Pt structures. In these systems, owing to the spin-orbit torque (SOT) and the interfacial Dzyaloshinskii-Moriya interaction (DMI), the DW moves in the current flowing direction. On the other hand, the threshold current density, DW velocity and magnitude of the DMI were found to be different between them even though the same combination of the materials are used. This results suggest that the SOT induced DW motion is significantly influenced by the stack sequence of the film

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