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arXiv 0907.3214cond-mat.supr-concond-mat.str-el
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铜氧化物中奇宇称电荷密度波散射

Odd parity charge density-wave scattering in cuprates

G. Seibold, M. Grilli, J. Lorenzana

摘要:

本文研究了超导电子与频率相关的电荷密度波(CDW)序参量Delta(w)耦合的模型。我们的方法可以调和的同时存在的低能量Bogoljubov准粒子和高能电子的顺序在扫描隧道显微镜(STM)实验中观察到的。该理论解释了在STM光谱中观察到的配对间隙上方的正偏置和负偏置之间的对比度反转。散射率和不均匀性之间的内在关系自然遵循。

英文摘要:

We investigate a model where superconducting electrons are coupled to a frequency dependent charge-density wave (CDW) order parameter Delta(w). Our approach can reconcile the simultaneous existence of low energy Bogoljubov quasiparticles and high energy electronic order as observed in scanning tunneling microscopy (STM) experiments. The theory accounts for the contrast reversal in the STM spectra between positive and negative bias observed above the pairing gap. An intrinsic relation between scattering rate and inhomogeneities follows naturally.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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