Laboratory of radio spectroscopy and spin wave electronics
The main directions of scientific research in the laboratory are the electrodynamics of magnetogyrotropic media (ferromagnets, ferrimagnets, weak ferromagnets, etc.); linear and nonlinear properties of dipole-exchange spin waves in magnetic multilayer structures and systems with complex curvilinear geometry; radio spectroscopy of epitaxial ferrite films; spin waves applications in magnetic field controlled devices for analog processing of centimeter and millimeter wave signals; theoretical and experimental studies of the linear and nonlinear magnetoelectric effects in single-phase magnetically ordered materials and composite structures on their base.
The composition of the laboratory:
- The founder of the laboratory – prof. I. V. Zavislyak (1947-2022).
- M. O. Popov, D. Sc. in Physics and Mathematics, assistant professor.
- H. L. Chumak, Ph. D. in Applied Physics and Nanomaterials, assistant professor.
- Students performing bachelor’s and master’s qualification works
Laboratory research overview:
- Diagnostics of epitaxial ferrite films with micro- and nano-meter thickness by radio spectroscopy methods in order to precisely determine the magnetic parameters of the material;
- Development of the theory of spin-wave eigen-modes in nano-sized ferrite resonators with elliptical geometry.
- Theoretical and experimental study of spectral and reflective properties of weak ferromagnets in the millimeter and sub-terahertz ranges;
- Development of microscopic models of nonlinear current magnetoelectric effect in single crystal ferrites;
- Investigation of hybrid electromagnetic-spin waves and oscillations in highly anisotropic ferrite materials (pure and substituted hexaferrites) in the sub-terahertz range;
- Magnetodynamic oscillations in cylindrical ferrite-dielectric resonators in the millimeter wavelength range and their practical applications;
- Development of the new microwave signals processing devices using epitaxial ferrite
films and bulk ferrite resonators.