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首页> 外文期刊>Physical review letters >Nondispersive Fermi Arcs and the Absence of Charge Ordering in the Pseudogap Phase of Bi_2Sr_2CaCu_2O_(8+δ)
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Nondispersive Fermi Arcs and the Absence of Charge Ordering in the Pseudogap Phase of Bi_2Sr_2CaCu_2O_(8+δ)

机译:Bi_2Sr_2CaCu_2O_(8 +δ)的非分散费米弧和伪有序相中的电荷有序不存在

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摘要

The autocorrelation of angle resolved photoemission data from the high temperature superconductor Bi_2Sr_2CaCu_2O_(8+δ) shows distinct peaks in momentum space which disperse with binding energy in the superconducting state, but not in the pseudogap phase. Although it is tempting to attribute a nondispersive behavior in momentum space to charge ordering, a deconstruction of the autocorrelation reveals that the nondispersive peaks arise from the tips of the Fermi arcs, which themselves do not change with binding energy.
机译:来自高温超导体Bi_2Sr_2CaCu_2O_(8 +δ)的角度分辨光发射数据的自相关显示出动量空间中的明显峰,这些峰在超导状态下以结合能分散,而在伪间隙相中则没有。尽管试图将动量空间中的非分散性行为归因于电荷有序,但自相关的解构显示非分散性峰源自费米弧的尖端,而费米弧的尖端本身不会随结合能而变化。

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