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首页> 外文期刊>Journal of Superconductivity >Effect of incommensurate charge-density wave scattering on the electronic structure of high-T{sub}c cuprates
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Effect of incommensurate charge-density wave scattering on the electronic structure of high-T{sub}c cuprates

机译:电荷密度波散射不均对高T {sub} c铜的电子结构的影响

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摘要

We argue that the collective mode as observed in angle resolved photoemission spectroslopy (ARPES) on a large class of cuprates can be associated with dynamic incommensurate CDW fluctuations present in these materials. This scenario is substantiated by a comparison of calculated spectra with experimental ARPES data where we obtain a mode frequency that decreases toward optimal doping, thus strongly supporting the existence of a quantum critical point around this concentration. Moreover, we extract the temperature dependence of the associated bosonic spectrum from ARPES data, where it turns out that there is a continuous evolution from mode-type behavior below T{sub}c to a marginal Fermi liquid structure well above T{sub}c.
机译:我们认为,在一大类铜酸盐的角度分辨光发射光谱仪(ARPES)中观察到的集体模式可能与这些材料中存在的动态CDW波动无关。通过将计算的光谱与实验ARPES数据进行比较,可以证实这种情况,在该实验中,我们获得了一个模式频率,该频率朝最佳掺杂方向降低,从而强烈支持了该浓度附近的量子临界点的存在。此外,我们从ARPES数据中提取了相关的玻色子光谱的温度依赖性,结果表明,从T {sub} c以下的模态行为到远高于T {sub} c的边际费米液体结构都有连续的演化。 。

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