Magnetization-induced deformations of magnetoelastic wires and films

• Applicant: Kostiantyn Yershov, Ph.D.
• Subject Area: Theoretical Condensed Matter Physics
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 503996451

This three-years theoretical research project addresses fundamental problems posed by the statics and dynamics of 1D and 2D topological solitons in magnetic nano-objects with complex curvilinear geometries and competing magnetic interactions, in particular in deformable media with magneto-elastic couplings. Use of these localized magnetic configurations as information carriers is considered as a promising route to novel high-speed, high-density, and nonvolatile devices in spintronics, computer logic, and nanorobotics. The central aim of the project is the development of application-oriented tools which allow to predict and analyze new effects in the behavior of topological solitons caused by geometric curvature and elastic deformations. Using general continuum theory of elastic magnetic media, analytical and numerical methods will be developed (i) to describe magnetization-induced deformations of elastic magnetic media, (ii) to describe the dynamics of topological solitons solely generated by curvature and its gradients, and (iii) to model their driven motion in curvilinear waveguides. (iv) Finally, a consistent theory will be formulated to describe magnetic solitons in deformable systems and applied to exemplary cases, namely bending wires and corrugated membranes. These nanomagnetic systems are expected to be synthesized in future experiments, enabling a wide range of applications.

• DFG Programme: Research Grants