Compositional variation of magnetic moment, magnetic anisotropy energy and coercivity in Fe(1−x)M x (M = Co/Ni) nanowires: an ab initio study
TLDR
In this paper, the magnetic and electronic properties of freestanding Fe(1−x)M −Co/Ni nanowires were investigated using ab initio simulations, and the magnetic anisotropy energy of the nanowire was observed to change sign with the increase of Co and Ni content.Abstract:
Ab initio simulations are used to investigate the magnetic and electronic properties of freestanding Fe(1−x)M
x
(M = Co/Ni) nanowires. The stability of the nanowires increases with Co (Ni) addition, as seen from the increase in cohesive energy. With the addition of Co (Ni), the average magnetic moment shows a monotonic decrease, in contrast to the Slater–Pauling behavior observed in bulk Fe–Co/Ni alloys. The magnetic anisotropy energy of the nanowire is observed to change sign, from a parallel alignment of spins along the wire axis, to a perpendicular alignment with the increase of Co and Ni content. The magnetic anisotropy energy variation is seen to be correlated with the orbital moment anisotropy. The coercivity, as calculated using the Jacobs–Bean model is observed to decrease with Co (Ni) addition to the nanowire.read more
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Crystalline structure and magnetic properties of structurally ordered cobalt–iron alloys grown on Bi-containing topological insulators and systems with giant Rashba splitting
A. K. Kaveev,N.S. Sokolov,Sergey M. Suturin,N.S. Zhiltsov,V. A. Golyashov,Konstantin A. Kokh,Igor P. Prosvirin,Oleg E. Tereshchenko,Masahiro Sawada +8 more
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Defect-impurity complex induced long-range ferromagnetism in GaN nanowires
Assa Aravindh S,Iman S. Roqan +1 more
TL;DR: In this article, structural, electronic and magnetic properties of wurtzite (0001) GaN nanowires (NWs) doped with Gd and point defects were investigated by employing the GGA+U approximation.
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Ab initio study of electronic structure and enhancement of magnetocrystalline anisotropy in MnFe2O4 for permanent magnet application
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TL;DR: In this paper, the electronic and magnetic properties of MnFe2O4 and the effect of Ca and Zn substitutions on half of the tetrahedral sites in terms of density functional theory calculations are presented.
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Correlating C=C, C=O and C=N Hydrogenation Activity with Hydrogen Binding Energies on Ni-Fe Bimetallic Catalysts
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References
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Nearly half-metallic one-dimensional Fe atomic chain on NiAl(110) and its magnetic properties
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Magnetic anisotropy and anisotropic ballistic conductance of thin magnetic wires
TL;DR: The magnetocrystalline anisotropy of thin magnetic wires of iron and cobalt is quite different from the bulk phases as discussed by the authors, and the ballistic conductance of the wire depends on the direction of the applied magnetic field, i.e. shows anisotropic ballistic magnetoresistance.