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Spinon-orbiton repulsion and attraction mediated by Hund's rule

机译:Spinon-orbibon排斥和由Hund规则介导的吸引力

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摘要

We study the impact of Hund's-rule coupling on orbital excitations, as, e.g., measured in inelastic resonant x-ray scattering. We find that the interpretation in terms of spin-orbit separation, which has been derived for one-dimensional systems without Hund's rule, remains robust in its presence. Depending on whether or not the orbital excitation includes a spin excitation, Hund's rule leads to an attractive or repulsive interaction between spinon and orbiton. Attraction (repulsion) leave clear signatures through a transfer of spectral weight to the lower (upper) edge of the spectrum.
机译:我们研究了Hund的偶联对轨道激发的影响,例如,在无弹性共振X射线散射中测量。 我们发现,旋转轨道分离方面的解释,这些解释已经为没有Hund规则的一维系统得出的,在其存在下仍然是强劲的。 根据轨道励磁是否包括旋转刺激,Hund的规则导致Spinon和替代之间的吸引力或排斥相互作用。 吸引力(排斥)通过将光谱重量转移到光谱的下部(上)边缘的转移来留出清晰的签名。

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