Microwave switching behaviors of Fe/Ag/Fe/Ag epitaxial films |
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| Authors: | Dung-Shing Hung Chen S Tsai Chin-Chung Yu Yung Liou Shang-Fan Lee Po-Chieh Chiang Chih-Sung Ho Yeong-Der Yao |
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| Institution: | 1. Department of Information and Telecommunications Engineering, Ming Chuan University, Taipei, Taiwan;2. Department of Electrical and Computer Engineering, University of California, Irvine, CA, USA;3. Institute of Physics, Academia Sinica, Taipei, Taiwan;4. Department of Chemical Engineering, Tunghai University, Taichung, Taiwan |
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| Abstract: | 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). |
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| Keywords: | Microwave FMR Epitaxial Ferromagnetic Hysteresis |
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