首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Current spinon-holon description of the one-dimensional charge-transfer insulator SrCuO_2: Angle-resolved photoemission measurements
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Current spinon-holon description of the one-dimensional charge-transfer insulator SrCuO_2: Angle-resolved photoemission measurements

机译:一维电荷转移绝缘子SrCuO_2的当前自旋-holon描述:角分辨光发射测量

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摘要

We have investigated the low-energy electronic structure of the strongly correlated one-dimensional copper oxide chain compound SrCuO_2 by angle-resolved photoemission as a function of excitation energy. In addition to the prominent spinon-holon continuum we observe a peaklike and dispersive feature at the zone boundary. By fine tuning the experimental parameters we are able to monitor the full holon branch and to directly measure the electronic hopping parameter with unprecedented accuracy.
机译:我们已经通过角度分辨光发射作为激发能的函数研究了强相关的一维氧化铜链化合物SrCuO_2的低能电子结构。除了突出的自旋子-全息图连续体外,我们还观察到了区域边界处的峰状和分散特征。通过微调实验参数,我们能够监控整个holon分支,并以前所未有的精度直接测量电子跳跃参数。

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