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arXiv 0706.4282cond-mat.supr-concond-mat.str-el
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两个能隙构成高温超导体?

Two Gaps Make a High Temperature Superconductor?

S. Huefner, M. A. Hossain, A. Damascelli, G. A. Sawatzky

摘要:

高温超导难题的关键之一是确定与超导电子对的相干凝聚体的出现相关的能量尺度。这些可能提供了一个衡量配对强度和超流体的相干性,并最终揭示了超导铜氧化物中难以捉摸的配对机制的本质。为此,人们投入了大量的精力来研究超导转变温度Tc和正常态赝能隙交叉温度T * 之间的关系。在这里,我们提出了大量的实验数据,提出了一个共存的两个间隙的情况下,即超导能隙和赝间隙,在整个超导圆顶。

英文摘要:

One of the keys to the high-temperature superconductivity puzzle is the identification of the energy scales associated with the emergence of a coherent condensate of superconducting electron pairs. These might provide a measure of the pairing strength and of the coherence of the superfluid, and ultimately reveal the nature of the elusive pairing mechanism in the superconducting cuprates. To this end, a great deal of effort has been devoted to investigating the connection between the superconducting transition temperature Tc and the normal-state pseudogap crossover temperature T*. Here we present a review of a large body of experimental data that suggests a coexisting two-gap scenario, i.e. superconducting gap and pseudogap, over the whole superconducting dome.

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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