论文标题

高温超导体作为离子金属

High-temperature superconductors as ionic metals

论文作者

Sunko, D. K.

论文摘要

鉴于其结合能是离子的事实,对高温超导体进行了审查。导电电子的主导于来自配体库仑积分的大得多的能量尺度,包括造成费米弧的平面外部的能量尺度。对洪德的统治从内部到中央均值效应的历史性重新诠释被应用于将丘比特与pnictides进行比较。有人认为,铜土符合现已标准的中央场范式,而普遍放弃的室内机制异常适用于Pnictides。非绝热的费米液体范式是从现象学证据中推断出来的。当铜离子完全刚性时,无胶超导性被解释为库珀散射的限制案例。

High-temperature superconductors are reviewed in light of the fact that their binding energy is ionic. The conducting electrons are dominated by the much larger energy scales coming from ligand Coulomb integrals, including the out-of-plane ones, which are responsible for the Fermi arcs. The historic reinterpretation of Hund's rule from an intraelectronic to a central mean-field effect is applied to compare the cuprates to the pnictides. It is argued that the cuprates conform to the now-standard central-field paradigm, while the generally abandoned intraelectronic mechanism is exceptionally applicable to the pnictides. A non-adiabatic Fermi liquid paradigm is inferred from the phenomenological evidence. Glueless superconductivity is interpreted as the limiting case of Cooper-pair scattering in cuprates when the Cu ion is perfectly rigid.

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