Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805238 | Journal of Magnetism and Magnetic Materials | 2006 | 7 Pages |
Abstract
On the basis of Landau–Lifshitz–Gilbert (LLG) equation, an anomalous ferromagnetic resonance behavior is demonstrated in detail. Coupling between the magnetic moments produces a 3π /2 phase delay for one of the moments ferromagnetic resonance unusually, thus leads the sign of magnetic susceptibility χ˜=χ′-jχ″ to be opposite to that induced by the usual ferromagnetic resonance. Consequently, a left-handed material (LHM) may be formed near the low-frequency side of the resonance. Particularly, a LHM with negative value of real part of permeability only is predicted.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Jiangwei Chen, Baoshan Zhang, Dongming Tang, Yi Yang, Weidong Xu, Huaixian Lu,