NdFe12Nx hard-magnetic compound with high magnetization and anisotropy field

Y. Hirayama; Y. K. Takahashi; S. Hirosawa; K. Hono

doi:10.1016/j.scriptamat.2014.10.016

NdFe₁₂N_x hard-magnetic compound with high magnetization and anisotropy field

Y. Hirayama, Y. K. Takahashi, S. Hirosawa, K. Hono^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

108 Citations (Scopus)

Abstract

The NdFe₁₂N_x compound with a ThMn₁₂ structure (space group I4/mmm) was successfully synthesized by nitriding an NdFe₁₂ layer grown on a W underlayer on a single-crystalline MgO(001) substrate. The c-axis expanded from 0.480 to 0.492 nm while the a-axis showed a slight contraction from 0.852 to 0.849 nm after the nitriding. Excellent intrinsic hard magnetic properties of μ₀M_s ∼ 1.66 ± 0.08 T, μ₀H_a ∼ 8 T, and T_c ∼ 550 °C, which are superior to those of Nd₂Fe₁₄B, were obtained.

Original language	English
Pages (from-to)	70-72
Number of pages	3
Journal	Scripta Materialia
Volume	95
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2014.10.016
Publication status	Published - 2015
Externally published	Yes

Keywords

Hard magnet
Nd-Fe-N
Permanent magnet
ThMn structure

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2014.10.016

Cite this

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title = "NdFe12Nx hard-magnetic compound with high magnetization and anisotropy field",

abstract = "The NdFe12Nx compound with a ThMn12 structure (space group I4/mmm) was successfully synthesized by nitriding an NdFe12 layer grown on a W underlayer on a single-crystalline MgO(001) substrate. The c-axis expanded from 0.480 to 0.492 nm while the a-axis showed a slight contraction from 0.852 to 0.849 nm after the nitriding. Excellent intrinsic hard magnetic properties of μ0Ms ∼ 1.66 ± 0.08 T, μ0Ha ∼ 8 T, and Tc ∼ 550 °C, which are superior to those of Nd2Fe14B, were obtained.",

keywords = "Hard magnet, Nd-Fe-N, Permanent magnet, ThMn structure",

author = "Y. Hirayama and Takahashi, {Y. K.} and S. Hirosawa and K. Hono",

year = "2015",

doi = "10.1016/j.scriptamat.2014.10.016",

language = "English",

volume = "95",

pages = "70--72",

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TY - JOUR

T1 - NdFe12Nx hard-magnetic compound with high magnetization and anisotropy field

AU - Hirayama, Y.

AU - Takahashi, Y. K.

AU - Hirosawa, S.

AU - Hono, K.

PY - 2015

Y1 - 2015

N2 - The NdFe12Nx compound with a ThMn12 structure (space group I4/mmm) was successfully synthesized by nitriding an NdFe12 layer grown on a W underlayer on a single-crystalline MgO(001) substrate. The c-axis expanded from 0.480 to 0.492 nm while the a-axis showed a slight contraction from 0.852 to 0.849 nm after the nitriding. Excellent intrinsic hard magnetic properties of μ0Ms ∼ 1.66 ± 0.08 T, μ0Ha ∼ 8 T, and Tc ∼ 550 °C, which are superior to those of Nd2Fe14B, were obtained.

AB - The NdFe12Nx compound with a ThMn12 structure (space group I4/mmm) was successfully synthesized by nitriding an NdFe12 layer grown on a W underlayer on a single-crystalline MgO(001) substrate. The c-axis expanded from 0.480 to 0.492 nm while the a-axis showed a slight contraction from 0.852 to 0.849 nm after the nitriding. Excellent intrinsic hard magnetic properties of μ0Ms ∼ 1.66 ± 0.08 T, μ0Ha ∼ 8 T, and Tc ∼ 550 °C, which are superior to those of Nd2Fe14B, were obtained.

KW - Hard magnet

KW - Nd-Fe-N

KW - Permanent magnet

KW - ThMn structure

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DO - 10.1016/j.scriptamat.2014.10.016

M3 - Article

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EP - 72

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