Title :
Dependence of Magnetic Anisotropy Energy on c/a Ratio of X2Fe14B (X = Y, Pr, Dy)
Author :
Asali, Ahmad ; Toson, Peter ; Blaha, Peter ; Fidler, Josef
Author_Institution :
Inst. for Solid State Phys., Vienna Univ. of Technol., Vienna, Austria
Abstract :
Rare earth-iron-boron permanent magnet materials exhibit large values of magnetocrystalline anisotropy. We have studied the dependence of the magnetization (moments) and the anisotropy energy on the change of the lattice parameter ratio c/a . The calculations were on the basis of the density functional theory, and were carried out with the WIEN2k code, a linearized augmented plane wave method. The spin-orbit coupling was also included to consider the relativistic effects concerning the 3d-4f interaction.
Keywords :
density functional theory; dysprosium compounds; iron compounds; lattice constants; magnetic anisotropy; magnetic moments; permanent magnets; praseodymium compounds; spin-orbit interactions; yttrium compounds; 3d-4f interaction; Dy2Fe14B; Pr2Fe14B; WIEN2k code; Y2Fe14B; density functional theory; lattice parameter; linearized augmented plane wave method; magnetic anisotropy energy; magnetization; magnetocrystalline anisotropy; moment; rare earth-iron-boron permanent magnet material; relativistic effect; spin-orbit coupling; Anisotropic magnetoresistance; Convergence; Iron; Lattices; Magnetic moments; Materials; Density functional theory (DFT) calculations; magnetocrystalline anisotropy; rare earth (RE)-Fe (iron)-B (boron)magnets;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2326431
