Ferromagnetic Resonance

Abstract

January 2010 he is an academic partner of the Niğde University. His current research interests include ferromagnetic resonance, microwave technology, magnetic nanostructures (nanowires, nanoparticles and magnetic nano O-ring), and spin-Peierls systems. Dr. Yalçın has published many papers in journals listed in the Science Citation Index, and several invited chapters in books released by international publishers.

Influence of the presence of multiple resonances on material parameter determination using broadband ferromagnetic resonance spectroscopy

“…Our simulations are aimed at reproducing data as it would be obtained experimentally in coplanar waveguide based broadband ferromagnetic resonance spectroscopy 4,42 . In our simulations we assume that the material contains four different constituents with slightly different material properties.…”

“…Ferromagnetic resonance spectroscopy (FMR) is a well established characterization method for magnetic materials [1][2][3][4] . While early experimental techniques were based on resonant cavities operated at a single frequency, recent advancements have led to broadband capabilities based on the use of coplanar waveguides 5-10 , vector network analyzers 7,[11][12][13][14][15][16][17] , and electrically detected FMR [18][19][20][21][22][23][24] .…”

“…Therefore when faced with multiple resonances in FMR experiments it can be challenging to pinpoint the origin of those resonances or to predict how many resonances are expected for a particular sample. Figure 1 shows an example of experimental spectra featuring multiple resonances in an M-type hexaferrite sample 41 measured using broadband ferromagnetic resonance spectroscopy 4 .…”