Preparation of Fe-Pt thin-sheet magnets using exfoliation behavior
M. Nakano,
Y. Miyahara,
A. Tsuruoka,
A. Yamashita,
T. Yanai,
T. Honda,
T. Shinshi,
H. Fukunaga
Affiliations
M. Nakano
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
Y. Miyahara
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
A. Tsuruoka
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
A. Yamashita
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
T. Yanai
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
T. Honda
Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
T. Shinshi
Laboratory for Future Interdisciplinary Research of Science and Technology, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
H. Fukunaga
Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan
In this research, Fe-Pt thin sheets thicker than 10 microns with Fe contents ranging from 50 to 60 at. % were prepared. Isotropic Fe-Pt thin sheets could be obtained by taking advantage of the exfoliation behavior after depositing Fe-Pt films on Si substrates using a laser ablation technique. A post-annealing process was used to obtain the L10 phase, and the (BH)max value of Fe-Pt thin sheets showed approximately 70 kJ/m3. Moreover, the test of a cantilever containing the obtained Fe-Pt thin sheet showed good mechanical characteristics.
