Rare-earth-free permanent magnets: the past and future

J Mohapatra, JP Liu - Handbook of magnetic materials, 2018 - Elsevier
Permanent magnets are essential components in everyday technologies, including in
energy conversion and transportation. Since the discovery of rare-earth-based permanent …

Recent developments of rare-earth-free hard-magnetic materials

D Li, DS Pan, SJ Li, ZD Zhang - Science China Physics, Mechanics & …, 2016 - Springer
Recent advances in rare-earth-free hard-magnetic materials including magnetic bulk, thin
films, nanocomposites and nanostructures are introduced. Since the costs of the rare-earth …

Hard and semi-hard magnetic materials based on cobalt and cobalt alloys

J Mohapatra, M Xing, J Elkins, JP Liu - Journal of Alloys and Compounds, 2020 - Elsevier
Cobalt (Co) is one of the most important 3d transition metal elements used in the
development of magnetic materials, especially in hard magnetic materials, from the early Co …

Prospect and status of iron-based rare-earth-free permanent magnetic materials

D Li, Y Li, D Pan, Z Zhang, CJ Choi - Journal of Magnetism and Magnetic …, 2019 - Elsevier
With the advent of high performance permanent magnets based on the rare-earth (RE)
elements such as Sm-Co, Nd-Fe-B alloys in 1980s, the application areas have been …

Magnetic properties of alloys and the effect of doping by elements

A Edström, M Werwiński, D Iuşan, J Rusz, O Eriksson… - Physical review B, 2015 - APS
We have explored, computationally and experimentally, the magnetic properties of (Fe 1− x
Co x) 2 B alloys. Calculations provide a good agreement with experiment in terms of the …

Current status of research and development toward permanent magnets free from critical elements

S Hirosawa - Journal of the Magnetics Society of Japan, 2015 - jstage.jst.go.jp
The current status of R&D activities and major results are briefly reviewed, mainly focusing
on work reported since about 2010. Developments in and perspectives on less-Dy and Dy …

Stabilization of the tetragonal distortion of FeCo alloys by C impurities: A potential new permanent magnet

EK Delczeg-Czirjak, A Edström, M Werwiński, J Rusz… - Physical Review B, 2014 - APS
We have analyzed by density functional theory calculations the structural and magnetic
properties of Fe-Co alloys doped by carbon. In analogy with the formation of martensite in …

Mechanism of uniaxial magnetocrystalline anisotropy in transition metal alloys

Y Kota, A Sakuma - Journal of the Physical Society of Japan, 2014 - journals.jps.jp
Magnetocrystalline anisotropy in transition metal alloys (FePt, CoPt, FePd, MnAl, MnGa, and
FeCo) was studied using first-principles calculations to elucidate its specific mechanism. The …

Magnetic anisotropy energy of disordered tetragonal Fe-Co systems from ab initio alloy theory

I Turek, J Kudrnovský, K Carva - Physical Review B—Condensed Matter and …, 2012 - APS
We present results of systematic fully relativistic first-principles calculations of the uniaxial
magnetic anisotropy energy (MAE) of a disordered and partially ordered tetragonal Fe-Co …

Rare-earth-free magnetically hard ferrous materials

Z Shao, S Ren - Nanoscale Advances, 2020 - pubs.rsc.org
Permanent magnets, especially rare-earth based magnets, are widely used in energy-critical
technologies in many modern applications, involving energy conversion and information …