凝聚态物理
各向异性
磁各向异性
磁矩
哈密顿量(控制论)
各向异性能量
磁化
电子磁偶极矩
物理
轨道磁化
磁场
量子力学
数学
数学优化
作者
G. M. Pastor,J. Dorantes‐Dávila,Štěpán Pick,H. Dreyssé
标识
DOI:10.1016/0927-0256(94)90075-2
摘要
The magnetic anisotropy of small FeN clusters is studied in the framework of a d-electron tight-binding Hamiltonian including hopping, Coulomb and spin-orbit interactions on the same electronic level. Results for the magnetic anisotropy energy (MAE), the orbital angular moment and the spin magnetic moment are given as a function of cluster size and bond length. In particular we show that the MAE may be qualitatively related to the projections of the orbital angular moment along the magnetization directions, and that the in plane anisotropy can be of the same order of magnitude as the perpendicular anisotropy.
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