Challenge to the Synthesis of α"-Fe16N2 Compound Nanoparticle with High Saturation Magnetization for Rare Earth Free New Permanent Magnetic Material

被引：100

作者：

Ogawa, Tomoyuki ^{[1
]}

Ogata, Yasunobu ^{[1
]}

Gallage, Ruwan ^{[2
]}

Kobayashi, Naoya ^{[2
]}

Hayashi, Naoaki ^{[3
]}

Kusano, Yoshihiro ^{[4
]}

Yamamoto, Shinpei ^{[5
]}

Kohara, Kaori ^{[2
]}

Doi, Masaaki ^{[1
]}

Takano, Mikio ^{[5
]}

Takahashi, Migaku ^{[1
,6
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Elect Engn, Sendai, Miyagi 9808579, Japan

[2] TODA Kogyo Corp, Tech Strategy Dept, Div Res & Dev, Otake, Hiroshima 7390652, Japan

[3] Kyoto Univ, Ctr Promot Interdisciplinary Educ & Res, Kyoto 6068501, Japan

[4] Kurashiki Univ Sci & Arts, Dept Fine & Appl Arts, Kurashiki, Okayama 7128505, Japan

[5] Kyoto Univ, Inst Integrated Cell Mat Sci iCeMS, Kyoto 6068501, Japan

[6] Tohoku Univ, New Ind Creat Hatchery Ctr NICHe, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS EXPRESS | 2013年 / 6卷 / 07期

基金：

日本学术振兴会;

关键词：

ALPHA'-FE-C; FE16N2; FILMS; N FILMS; MOMENT; ALPHA''-FE16N2; ANISOTROPY; DENSITY;

D O I：

10.7567/APEX.6.073007

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single-phase alpha ''-Fe16N2 nanoparticles have been synthesized with high reproducibility in gram amounts for the first time. The nanoparticles were obtained through the various kinds of successive procedure starting from the reduction of Fe-oxides, followed by nitriding in an atmosphere with very low moisture and oxygen contents of less than 1 ppm through the entire process. The single-phase alpha ''-Fe16N2 nanoparticles exhibited saturation magnetization (M-s) of 234 emu/g at 5 K and a magnetocrystalline anisotropy constant (K-u) of 9.6 x 10(6) erg/cm(3). These magnetic properties of this alpha ''-Fe16N2 nanoparticles suggest that a new path for a possible candidate of the rare-earth-free permanent magnet material with a high M-s. (C) 2013 The Japan Society of Applied Physics

引用

页数：3

共 24 条

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