元素V和N在四方畸变Fe-Co-V-N薄膜中的作用。

IF 3.9 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Scientific Reports Pub Date : 2025-08-05 DOI:10.1038/s41598-025-13671-3

Takashi Hasegawa, Chihiro Murakami, Kosuke Imamura, Yuta Nakamura, Mitsuru Ohtake, Haruki Yamane

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引用次数: 0

摘要

具有体心四方结构的四方畸变Fe-Co-V-N具有高饱和磁化强度和高磁晶各向异性（~ 1 MJ/m3），有望成为一种新型硬磁材料。元素V和N的联合添加对bct形成的有效性已被报道，但其机制尚不清楚。在本研究中，FeCo中V和N的含量是系统变化的，在% V和% N下的最佳含量约为20，在% N下为6。这种最佳组合对于bct转化也是有效的，即使在100纳米厚的薄膜中也是如此。假设V在bct转变中的作用是降低改变FeCo晶格常数并吸引N所需的能量，N的作用也被认为是延长Fe-Co-V晶格的c轴，导致bct转变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Roles of elements V and N in tetragonally distorted Fe-Co-V-N films.

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Roles of elements V and N in tetragonally distorted Fe-Co-V-N films.

Tetragonally distorted Fe-Co-V-N with a body-centred tetragonal (bct) structure has a high saturation magnetisation and a high magnetocrystalline anisotropy of ~ 1 MJ/m³ and is expected to be a new hard magnetic material. The effectiveness of the combined addition of the elements V and N for bct formation has been reported, but the mechanism remains unclear. In this study, the amounts of V and N in FeCo were varied systematically, and the optimal amounts were found to be approximately 20 at% V and 6 at% N. This optimal composition was also effective for the bct transformation, even in a 100-nm-thick film. The role of V in the bct transformation is assumed to be to lower the energy needed to change the lattice constant of FeCo and attract N. The role of N is also considered to extend the c-axis of the Fe-Co-V lattice, causing a bct transformation.

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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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