Improvement of magnetic hardness at nite temperatures:ab initio disordered local moment approach for YCo5
Phys. Rev. B 90, 054421 (2014)
DOI: http://dx.doi.org/10.1103/PhysRevB.90.054421 ( Munehisa Matsumoto, Rudra Banerjee amd Julie Staunton )
Abstract
Temperature dependence of the magnetocrystalline anisotropy energy and magnetization ofthe prototypical rare-earth magnet YCo5 is calculated from first principles, utilizing therelativistic disordered local moment approach. We discuss a strategy to enhance the finite-temperature anisotropy field by hole doping, paving the way for an improvement of thecoercivity near room temperature or higher.
その他特記事項
英国EPSRC grant
