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首页> 外文期刊>Physica, C. Superconductivity and its applications >Superconducting gaps and pseudogaps in a composite model of two-component cuprate
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Superconducting gaps and pseudogaps in a composite model of two-component cuprate

机译：两组分铜酸盐复合模型中的超导间隙和拟间隙

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摘要

A descriptive interband model of cuprate superconductivity with two-subbands of the defect-component is developed. These are related to "hot" and "cold'' regions of the momentum space. Two pseudogaps appear as the minimal quasiparticle excitations energies. The smaller one transforms with extended doping to the superconducting gap of the itinerant component. At a critical overdoping concentration the larger pseudogap transforms into the defect component superconducting gap. The presence of two pseudogaps in the underdoped state and the extension of the larger pseudogap to overdoping agree with the recent experimental data. The relations between various observed cuprate gaps and other properties are discussed. (C) 2003 Elsevier B.V. All rights reserved. [References: 58]
机译：建立了具有缺陷子分量的两个子带的铜酸盐超导性的描述性带间模型。它们与动量空间的“热”和“冷”区域有关，出现了两个拟间隙，作为最小的准粒子激发能;较小的间隙随着扩展的掺杂而转变为流动成分的超导间隙。较大的伪间隙转换成缺陷成分超导间隙。在掺杂不足的状态下存在两个伪间隙以及将较大的伪间隙扩展为过量掺杂与最近的实验数据相符。讨论了各种观察到的铜酸盐间隙与其他性质之间的关系。 ）2003 Elsevier BV保留所有权利[引用：58]

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