Spin Wave Spectra in a Ferromagnetic/Non-magnetic Superlatt ice with Antiparallel Magnetization |
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Authors: | Y Q WANG Z Y LI |
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Institution: | 1. Department of Physics, Suzhou University, Suzhou 215006, China;
2. CCAST (World Laboratory), P. O. Box 8730, Beijing 100080, China |
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Abstract: | The transfer-matrix method is employed to investigate the spin waves in a ferromagnetic/non-magnetic superlat tice with an antiferromagnetic coupling between interfacial ferromagnetic layers across a non-magnetic spacer layers and the an tiparaUel magnetizations between neighboring ferromagnetic films. The dispersion relation of the spin waves is obtained. The effects of the thickness of the magnetic layers, the antiferromagnetic coupling strength and concentration of magnetic atoms at the interface on the spin wave spectra are discussed in detail. |
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