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Resonant inelastic x-ray scattering from highly correlated dysprosium compounds

机译:高度相关的compounds化合物的共振非弹性X射线散射

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DY2O3 and Dy metal's resonant inelastic x-ray scattering (RIXS) spectra were measured in the Beijing Synchrotron Radiation Facility. As a bulk sensitive probe and two-photon process, RIXS provides more information on the electronic structure of matter. In this full RIXS experiment, the 2p(6)4f(n) -> 2p(5)4f(n)5d(1) (2p(5)4f(n+1)5d(0)) -> 2p(6)3d(9)4f(n)5d1 (2p(6)3d(9)4f(n+1)5d(0)) channel of two samples (DY2O3 and Dy metal) was studied. Further comparison shows that there are many differences in the RIXS spectra. Dy metal has only a single resonance and its 5d band is broader than that of DY2O3. In the resonant regime, it has a lower final state energy, whereas in the non-resonant regime it exceeds DY2O3. This causes a broader bandwidth of the main final state B and a narrower bandwidth in the resonant and non-resonant regime. The pre-edge structure in Dy L-3 absorption spectra was also resolved using RIXS, which cannot be seen in conventional XAS owing to 2p core hole lifetime broadening. Copyright (c) 2005 John Wiley & Sons, Ltd.
机译:在北京同步辐射装置中测量了DY2O3和Dy金属的共振非弹性X射线散射(RIXS)光谱。作为体敏探针和双光子过程,RIXS提供了有关物质电子结构的更多信息。在这个完整的RIXS实验中,2p(6)4f(n)-> 2p(5)4f(n)5d(1)(2p(5)4f(n + 1)5d(0))-> 2p(6 )研究了两个样品(DY2O3和Dy金属)的3d(9)4f(n)5d1(2p(6)3d(9)4f(n + 1)5d(0))通道。进一步的比较表明,RIXS光谱存在许多差异。 metal金属只有一个共振,其5d谱带比DY2O3谱带宽。在共振状态下,它具有较低的最终状态能量,而在非共振状态下,它超过了DY2O3。这导致主要最终状态B的带宽变大,而在共振和非共振状态下带宽变窄。 Dy L-3吸收光谱中的前边缘结构也使用RIXS进行了解析,由于2p的核孔寿命变宽,因此在常规XAS中无法看到。版权所有(c)2005 John Wiley&Sons,Ltd.

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