Magnetic and structural properties of FePt thin film prepared by rapid thermal annealing

被引：0

作者：

Itoh, Yuji ^{[1
]}

Takeuchi, Makoto ^{[1
]}

Tsukamoto, Arata ^{[1
]}

Nakagawa, Katsuji ^{[1
]}

Itoh, Aldyoshi ^{[1
]}

Katayama, Toshikazu ^{[2
]}

机构：

[1] Dept. of Electronics and Comp. Sci., College of Science and Technology, Nihon University, 7-24-1 Narashinodai, Funabashi 274-8501, Japan

[2] College of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi 274-8510, Japan

来源：

Japanese Journal of Applied Physics, Part 2: Letters | 2002年 / 41卷 / 10 A期

关键词：

Fabrication - Film preparation - Grain size and shape - Iron compounds - Magnetic anisotropy - Magnetization - Multilayers - Oxidation - Rapid thermal annealing - Substrates - Transmission electron microscopy;

D O I：

10.1143/jjap.41.l1066

中图分类号：

学科分类号：

摘要：

We fabricated the FePt film on thermal oxidized Si substrate by rapid thermal annealing (RTA), and investigated the order parameter and the orientation parameter as a function of annealing temperature. We also observed grains by a transmission electron microscope (TEM). The joining of the grains begins at between 300°C and 400°C, and this is the threshold for obtaining highly (001) oriented FePt films. We also clarify the difference in the magnetization and the structure between the films annealed from Pt/Fe (Fe-first) and from Fe/Pt (Pt-first) multilayers as the starting materials. The film annealed from the Fe-first multilayers has the perpendicular magnetization showing higher (001) orientation and magnetic anisotropy than the film annealed from the Pt-first multilayers.

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