Title :
Electrical tuning of dispersion characteristics of surface electromagnetic-spin waves propagating in ferrite-ferroelectric layered structures
Author :
Demidov, Vladislav E. ; Kalinikos, Boris A. ; Karmanenko, Sergey F. ; Semenov, Alexandr A. ; Edenhofer, Peter
Author_Institution :
Dept. of Electron-Ion Process. of Solids, St. Petersburg Electrotech. Univ., Russia
Abstract :
Electrical tuning of dispersion characteristics has been studied experimentally for hybrid surface electromagnetic-spin waves propagating perpendicularly to the direction of the static magnetization in tangentially magnetized layered structures containing ferrite and ferroelectric layers. The tuning is realized through the variation of the dielectric constant of the ferroelectric layer by changing the applied electric field. A comparison between experimentally measured and theoretically calculated dispersion characteristics is presented and shows a good agreement.
Keywords :
barium compounds; dispersion (wave); ferrite waveguides; ferroelectric devices; garnets; magnetic microwave devices; magnetic multilayers; magnetostatic surface waves; magnetostatic wave devices; permittivity; spin waves; strontium compounds; surface electromagnetic waves; tuning; yttrium compounds; YFe5O12-Ba0.6Sr0.4TiO3; YIG-Ba0.6Sr0.4TiO3; applied electric field; dielectric constant variation; dispersion characteristics; electrical tuning; electrically tunable microwave phase shifters; ferrite layers; ferrite-ferroelectric layered structures; ferroelectric layers; magnetostatic surface spin wave excitations; microstrip transmission lines; perpendicular propagation; planar waveguides; static magnetization direction; surface electromagnetic-spin waves; tangentially magnetized layered structures; Dielectric constant; Dielectric measurements; Dispersion; Electromagnetic measurements; Electromagnetic propagation; Ferrites; Ferroelectric materials; Magnetic field measurement; Magnetization; Surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.817461
