标题： bct FeCo合金中磁各向异性对顺序依赖性的程度 显示英文标题

标题： Degree of order dependence on magnetocrystalline anisotropy in bct FeCo alloys

摘要： 我们通过第一性原理电子结构计算结合相干势近似，研究了四角畸变FeCo合金的磁晶各向异性（MCA）能量，该能量取决于有序度。 所得结果表明，在最佳条件下，FeCo合金的MCA能量强烈依赖于有序度，此时bct结构的轴比为1.25，成分是Fe0.5Co0.5。 我们发现，由化学无序引起的电子散射导致的电子结构修改在这些条件下对MCA有显著影响。 显示英文摘要

摘要： We investigate the magnetocrystalline anisotropy (MCA) energy of tetragonal distorted FeCo alloys depending on the degree of order by first-principles electronic structure calculation combined with the coherent potential approximation. The obtained results indicate that the MCA energy of FeCo alloys strongly depends on the degree of order under optimal conditions, where the axial ratio of the bct structure is 1.25 and the composition is Fe0.5Co0.5. We find that the modification of the electronic structure resulting from electron scattering by chemical disorder has a considerable influence on the MCA under these conditions.