The growing interest in studying micro- and nanostructured magnetic systems with potential applications in spintronics or spin electronics has led to the creation of research lines related to the study and understanding of magnetization dynamics. Understanding the mechanisms that allow the control of magnetization in a system using spin-polarized currents and, at the same time, generating spin currents through the excitation of magnetization opens up enormous possibilities for the development of electronic devices with new functionalities. Some examples, such as the manufacturing of new types of storage memories and electronic devices with low power dissipation, are just a few of the applications that have been explored in recent years.
From a basic physics point of view, the phenomena that give rise to these applications are not studied in different laboratories in the country. The general objective of the proposal involves the continuation and consolidation of the recent research line of the Magnetic Resonances Division at the Bariloche Atomic Center, which studies the magnetic and spin-polarized electronic transport properties of magnetic microstructures. This objective, in addition to consolidating a research line in the MRD, will expand the scope of basic research topics and experimental techniques related to the study of new phenomena in the field of spintronics.
To strengthen this line of work, the study of magnetism and spin-dependent electrical transport phenomena in low-dimensional systems is proposed. The tasks to be carried out in the project are aimed at contributing to the understanding of phenomena in three-dimensional systems, encompassing the study of basic physics and potential applications related to the generation and manipulation of spin currents and charge currents. The MAGNETS proposal aims to study different mechanisms for controlling spin currents and contribute to the understanding of magnetization dynamics in ferromagnet-metal and synthetic antiferromagnet-metal systems. Additionally, it aims to contribute to the implementation of a new experimental technique that will allow quantifying the efficiency of current conversion phenomena (from spin to charge): spin torque-ferromagnetic resonance.
Lucas Brugevin, student of Physics at Instituto Balseiro presenting the first results of the projects DISCO (PICT 2021-00113 project) and MAGNETS (Conicet under Grant PIBAA Nro. 28720210100099C). The work report the optimization process of the microstructured devices (CPW and microsized-ferromagnetic/metallic layers) for the spin-torque ferromagnetic resonance characterization.
More results are coming soon! Stay tuned :)
Poster can be downloaded from this link