LaMnO₃中共振散射机制的确定。
Determination of the mechanism for resonant scattering in LaMnO3.
作者信息
Shen Q, Elfimov I S, Fanwick P, Tokura Y, Kimura T, Finkelstein K, Colella R, Sawatzky G A
机构信息
Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, New York 14853, USA.
出版信息
Phys Rev Lett. 2006 Jun 23;96(24):246405. doi: 10.1103/PhysRevLett.96.246405.
The resonant multiple Bragg x-ray diffraction is used to study the forbidden (104) reflection in LaMnO3. Using the interference between the three-beam scattering and resonant scattering we can determine the phase of the resonant scattering. This phase is shown to be consistent with a model in which the resonant scattering is caused by the influence of the Mn-O bond length distortion rather than directly by the orbital ordering on the Mn 4p band structure.
共振多布拉格X射线衍射被用于研究LaMnO₃中禁戒的（104）反射。利用三束散射与共振散射之间的干涉，我们可以确定共振散射的相位。结果表明，该相位与一个模型相符，在该模型中，共振散射是由Mn - O键长畸变的影响引起的，而不是直接由Mn 4p能带结构上的轨道有序化引起的。
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