Regensburg 2025 – scientific programme

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MA: Fachverband Magnetismus

MA 15: Poster I

MA 15.12: Poster

Tuesday, March 18, 2025, 10:00–12:30, P1

Straining three-dimensional magnetic nanostructures — •José Claudio Corsaletti Filho, Mohammad Sedghi, Elina Zhakina, Markus König, Elena Gati, and Claire Donnelly — Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

The study of nanoscale magnetic objects has led to fascinating discoveries over the past few decades. Three-dimensional magnetism offers new opportunities to develop compact energy storage devices and explore spin textures and novel domain walls, which could be crucial for energy-efficient computation. To improve our fundamental understanding and enable the development of new devices, it is important to be able to tune the magnetic properties of materials. One way to achieve the controlled manipulation of magnetic properties is through the application of strain. While the straining of materials is well established for both bulk, and thin film samples, applying strain to 3D magnetic nanostructures remains an open challenge. In this project we develop a protocol to strain three-dimensional cobalt nanostructures grown with focused electron beam induced deposition. By performing in-situ measurements as a function of applied strain, we explore first the mechanical properties of the 3D nanostructures under an electron microscope, and secondly, the evolution of the magnetic properties of the nanostructure with strain. The straining of magnetic nanostructures opens the door to control of magnetic textures in complex geometries, of key importance both to our fundamental understanding, and the development of new devices.

Keywords: nano magnetism; three-dimensional nanostructure; strain