Ordering and grain growth of FePt thin films by annealing |
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| Authors: | Norio Murayama Susumu Soeya Yoshio Takahashi Masaaki Futamoto |
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| Institution: | 1. Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan;2. Central Research Laboratory, Hitachi Ltd., 1-280 Higashi-Koigakubo, Kokubunji-shi, Tokyo 185-8601, Japan |
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| Abstract: | Microstructure variation of FePt thin film upon annealing at elevated temperatures was investigated by transmission electron microscopy (TEM). A special shape aperture was employed to observe the ordered L10 phase in the dark-field TEM images. With increasing the annealing temperature, crystal grains formed clusters with gathering of neighboring grains, and crystal grain growth proceeded within the cluster. L10 ordered crystal grains were preferentially formed near the grain boundaries, and their sizes grew with increasing the annealing temperature. |
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| Keywords: | 68 37 Lp 75 50 Ss 75 70 Ak |
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