Title :
Nonlinear backward magnetic waves on the interface between ferromagnet and antiferromagnet
Author :
Qi, Wang ; Zhong, Wu ; Li-qiang, Wang
Author_Institution :
Coll. of Sci., Shanghai Univ., China
Abstract :
In this paper we investigate the nonlinear behavior of magnetic TM surface waves on the interface between an antiferromagnet and a ferromagnet. We found in this new guiding structure that the rich frequency characteristics take place in the microwave frequency regime. It is also revealed for the first that the nonlinear TM surface waves excited on the interface can be backward surface waves, that is, the waves with the group velocity and phase velocity opposite, in the case of ε1<ε2
Keywords :
antiferromagnetism; dispersion relations; ferromagnetism; magnetic microwave devices; surface electromagnetic waves; waveguide theory; backward surface waves; ferromagnet/antiferromagnet interface; frequency characteristics; group velocity; guiding structure; magnetic TM surface waves; microwave frequency regime; nonlinear TM surface waves; nonlinear backward magnetic waves; nonlinear behavior; phase velocity; Antiferromagnetic materials; Dielectrics; Educational institutions; Magnetic materials; Magnetic resonance; Passband; Permeability; Resonant frequency; Solitons; Surface waves;
Conference_Titel :
Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4308-5
DOI :
10.1109/ICMMT.1998.768465
