磁圆二色性
X射线磁圆二色性
线性二色性
X射线吸收光谱法
电子结构
磁性半导体
磁矩
磁化
谱线
吸收光谱法
二色性
凝聚态物理
化学
铁磁性
物理
结晶学
圆二色性
磁场
光学
量子力学
天文
作者
V. N. Antonov,L. V. Bekenov,O. Jepsen,Daniel Mazur,L. P. Germash
摘要
The electronic structure of the (Zn, Co)O diluted magnetic semiconductors (DMSs) were investigated theoretically from first principles, using the fully relativistic Dirac linear muffin-tin orbital band structure method. The electronic structure was obtained with the local spin-density approximation. The x-ray absorption spectra (XAS), x-ray magnetic circular dichroism (XMCD), and x-ray linear dichroism (XLD) spectra at the Co, Zn, and O K and Zn, Co L2,3 edges were investigated theoretically from first principles. The origin of the XMCD and XLD spectra in these compounds was examined. The orientation dependence of the XAS at the Co and Zn K edges were investigated by calculating the XAS spectra for the 〈001〉 and 〈110〉 magnetization axis. The calculated results are compared with available experimental data.
科研通智能强力驱动
Strongly Powered by AbleSci AI