Effect of tetragonal distortion induced by interstitial C-doping in L10-FeNi

In order to tune the magnetocrystalline anisotropy (MCA) of L10-FeNi by introducing tetragonal distortion, we have investigated FeNi with interstitial C-doping using full-potential approach within generalized gradient approximation (GGA). Our calculations foretell that these structural distortions o...

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Bibliographic Details
Published inAIP Conference Proceedings Vol. 2115; no. 1
Main Authors Rani, Priti, Thakur, Jyoti, Taya, Ankur, Kashyap, Manish K.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Melville American Institute of Physics 11.07.2019
Subjects
Anisotropy
Distortion
Doping
Free energy
Heat of formation
Magnetic materials
Magnetic saturation
Mathematical analysis
Rare earth elements
Structural stability
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Summary:In order to tune the magnetocrystalline anisotropy (MCA) of L10-FeNi by introducing tetragonal distortion, we have investigated FeNi with interstitial C-doping using full-potential approach within generalized gradient approximation (GGA). Our calculations foretell that these structural distortions of FeNi result in a large MCA of 1.88 MJ/m3 at the cost of small suppression in saturation magnetization. Moreover, calculated formation energy also promotes the structural stability of FeNi:C over FeNi. Hence, L10-FeNi:C alloy has the potential to act as opportune rare-earth free permanent magnetic material.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5113336