Microwave switching behaviors of Fe/Ag/Fe/Ag epitaxial films

In this study, Fe/Ag/Fe/Ag ferromagnetic structures were epitaxially grown on a GaAs(1 0 0) substrate. Using the Network Analyzer (Agilent 8510C), FMR (ferromagnetic resonant) signals were observed in samples as the in-plane magnetic field was applied to either hard- or easy-axes. Of interest was th...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2006-09, Vol.304 (1), p.e118-e120
Main Authors: Hung, Dung-Shing, Tsai, Chen S., Yu, Chin-Chung, Liou, Yung, Lee, Shang-Fan, Chiang, Po-Chieh, Ho, Chih-Sung, Yao, Yeong-Der
Format: Article
Language:English
Subjects:
Epitaxial
Ferromagnetic
FMR
Hysteresis
Microwave
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Summary:In this study, Fe/Ag/Fe/Ag ferromagnetic structures were epitaxially grown on a GaAs(1 0 0) substrate. Using the Network Analyzer (Agilent 8510C), FMR (ferromagnetic resonant) signals were observed in samples as the in-plane magnetic field was applied to either hard- or easy-axes. Of interest was that our sample demonstrated a FMR-switching behavior in hard-axis but not in easy-axis. The detecting data showed that the switch magnetic field was much smaller than what has been stated previously in Fe/Cu/Fe systems by other laboratories. In addition to the frequency switch in FMR, we also observed a magnetic reversal behavior in its M– H curve. Data presented that both of the FMR and magnetic reverse took place in the same direction (hard-axis).
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.01.196