21-25 May 2019
Faculty of Radio Physics, Electronics and Computer Systems
Europe/Kiev timezone

Domain wall motion in ferromagnets with nonuniform Dzyaloshinskii-Moriya interaction

Not scheduled
20m
Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems

Faculty of Radio Physics, Electronics and Computer Systems of Taras Shevchenko National University of Kyiv, acad. Glushkov ave., 4g, Kyiv, Ukraine
Oral Magnetism and Superconductivity Magnetism and Superconductivity

Speaker

Mr Bohdan Khromets (Taras Shevchenko National University of Kyiv)

Abstract Content

We consider statics and dynamics of domain walls in one-dimensional ferromagnets with functionally-graded Dzyaloshinskii-Moriya interaction. We show that domain wall static solutions in cases of different relations between Dzyaloshinskii-Moriya interaction type and anisotropy axis directions are represented by one of the pendulum equations: with the parametric pumping or external force. We report domain wall drift in the second case and absence of drift in the first one. An analytical model of drift motion is built using collective variables method. The theoretical predictions are confirmed by spin-lattice simulations.

Type ob Book of Abstracts Paperback

Primary authors

Mr Bohdan Khromets (Taras Shevchenko National University of Kyiv) Dr Oleksandr Pylypovskyi (Taras Shevchenko National University of Kyiv) Prof. Denis Sheka (Taras Shevchenko National University of Kyiv)

Presentation Materials

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