NEPHEWS Twinning Programme - Jakub Kušnír

While acoustic and thermal properties of these alloys can be effectively investigated using conventional laboratory TGS systems, the study of magneto-structural dynamics driven by rapid magnetic fluctuations requires much shorter excitation wavelengths and access to significantly higher frequency ranges. Such capabilities are uniquely available at FERMI, where transient grating techniques have been extended to short-wavelength excitation and THz-range dynamics through advanced pump–probe approaches.

During his stay, Jakub expanded his knowledge of pump–probe transient grating methodologies and explored the measurement of magnetic properties using TG techniques under free-electron laser conditions. The experience provided valuable insight into the experimental design required for short-wavelength transient grating studies and strengthened his ability to plan future measurements of his materials at FERMI.

His visit proved both scientifically enriching and strategically important, equipping him with the expertise needed to prepare a competitive beamtime proposal and further develop his research on magnetically driven structural phenomena. For Elettra and FERMI, hosting motivated researchers such as Kušnír confirms the importance of the Twinning Programme in building strong scientific connections and supporting the next generation of facility users.