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Optical evidence for dimensionality crossover: the case of ladder systems and organic Bechgaard salts

机译:尺寸交叉的光学证据:梯形系统和有机Bechgaard盐的情况

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摘要

We compare our optical data collected in two families of low dimensional correlated electron systems: the ladders and the organic Bechgaard salts. Our data display a remarkable optical anisotropy between the spectra along the three crystallographic axes, indicative of the low dimensionality in the electronic band structure. Moreover, we optically identify a dimensionality crossover, induced by Ca-doping in the ladders and by chemical pressure in the Bechgaard salts. [References: 16]
机译:我们比较了在两个低维相关电子系统族中收集的光学数据:梯子和有机Bechgaard盐。我们的数据显示沿三个结晶轴的光谱之间存在显着的光学各向异性,表明电子能带结构的维数很低。此外,我们从光学上确定了由梯形中的Ca掺杂和Bechgaard盐中的化学压力引起的尺寸交叉。 [参考:16]

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