Site-specific electronic structures of ferrimagnetic Fe3O4 measured by resonant X-ray magnetic scattering
Site-specific electronic structures of ferrimagnetic Fe3O4 measured by resonant X-ray magnetic scattering
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通过共振 X 射线磁散射测量亚铁磁性 Fe3O4 的位点特定电子结构
DOI：
10.1107/s1600576714013302
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发表时间：
2014
影响因子：
6.1
通讯作者：
Maki Okube and Satoshi Sasaki
中科院分区：
文献类型：
--
作者：
Y. Yin;Y. Zhang;and S. Hosaka;Maki Okube and Satoshi Sasaki
圆极化同步加速器x射线的共振磁散射揭示了Fe3O4中两个非等效Fe离子位置的特异磁矩。026和266反射的能量依赖峰分别属于A位Fe 3d的e和t2能级，以及B位Fe 3d的t2g和eg能级，按能量顺序依次为t2g、e、eg和t2。这个序列与文献中的局部自旋密度近似计算一致[Anisimov， Elfimov, Hamada & Terakura,(1996)]。理论物理。Rev. 54, 4387-4390]，其中费米能量处的自旋下带对应于t2。共振磁傅立叶合成揭示了铁磁矩的电子密度。
Resonant magnetic scattering of circularly polarized synchrotron X-rays has revealed the site-specific magnetic moments at two non-equivalent Fe ion sites in Fe3O4. The energy-dependent peaks for the 026 and 266 reflections were attributed ferrimagnetically to the e and t2 energy levels of Fe 3d at the A site, and to the t2g and eg levels at the B site, respectively, having a sequence of t2g, e, eg and t2 in order of energy. This sequence agrees with the local spin-density approximation calculations in the literature [Anisimov, Elfimov, Hamada & Terakura, (1996). Phys. Rev. 54, 4387–4390], in which the spin-down band at the Fermi energy corresponds to t2g. Resonant magnetic Fourier synthesis reveals the electron densities of the ferrimagnetic moments.