Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution
Employing first-principles density functional calculations, we investigate critical effects of V and Co co-substitution on the structural stability and intrinsic magnetic properties of α″-phase Fe16N2. We demonstrate that only 1 or 2 V substitutes per formula unit stabilize the α″ phase and enhance...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2021-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/9.0000068 |
| _version_ | 1818607330329100288 |
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| author | T. Ochirkhuyag S. C. Hong D. Odkhuu |
| author_facet | T. Ochirkhuyag S. C. Hong D. Odkhuu |
| author_sort | T. Ochirkhuyag |
| collection | DOAJ |
| description | Employing first-principles density functional calculations, we investigate critical effects of V and Co co-substitution on the structural stability and intrinsic magnetic properties of α″-phase Fe16N2. We demonstrate that only 1 or 2 V substitutes per formula unit stabilize the α″ phase and enhance uniaxial magnetic anisotropy (Ku) up to 1.1 MJ m−3, which is nearly 2 times that of 0.6 MJ m−3 in α″-Fe16N2. It is further predicted that Ku can even reach up to 1.8 MJ m−3 in Fe12V2Co2N2 with good stability. These results provide an instructive guideline for simultaneous enhancement of the structural stability and energy product in 3d-only permanent magnets. |
| first_indexed | 2024-12-16T14:25:02Z |
| format | Article |
| id | doaj.art-e72e83c46e234c22953121bf534e9caa |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-16T14:25:02Z |
| publishDate | 2021-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-e72e83c46e234c22953121bf534e9caa2022-12-21T22:28:24ZengAIP Publishing LLCAIP Advances2158-32262021-01-01111015227015227-610.1063/9.0000068Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitutionT. Ochirkhuyag0S. C. Hong1D. Odkhuu2Department of Physics, Incheon National University, Incheon 22012, South KoreaDepartment of Physics, University of Ulsan, Ulsan 44610, South KoreaDepartment of Physics, Incheon National University, Incheon 22012, South KoreaEmploying first-principles density functional calculations, we investigate critical effects of V and Co co-substitution on the structural stability and intrinsic magnetic properties of α″-phase Fe16N2. We demonstrate that only 1 or 2 V substitutes per formula unit stabilize the α″ phase and enhance uniaxial magnetic anisotropy (Ku) up to 1.1 MJ m−3, which is nearly 2 times that of 0.6 MJ m−3 in α″-Fe16N2. It is further predicted that Ku can even reach up to 1.8 MJ m−3 in Fe12V2Co2N2 with good stability. These results provide an instructive guideline for simultaneous enhancement of the structural stability and energy product in 3d-only permanent magnets.http://dx.doi.org/10.1063/9.0000068 |
| spellingShingle | T. Ochirkhuyag S. C. Hong D. Odkhuu Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution AIP Advances |
| title | Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution |
| title_full | Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution |
| title_fullStr | Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution |
| title_full_unstemmed | Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution |
| title_short | Enhancing magnetic anisotropy and stability of α″-Fe16N2 phase by Co and V co-substitution |
| title_sort | enhancing magnetic anisotropy and stability of α fe16n2 phase by co and v co substitution |
| url | http://dx.doi.org/10.1063/9.0000068 |
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