Superfluid density and two-component conductivity in hole-doped cuprates
Superfluid density and two-component conductivity in hole-doped cuprates
复制标题
DOI：
10.3389/fphy.2022.1021462
复制
发表时间：
2022-10-14
影响因子：
3.1
通讯作者：
Hussey, Nigel E.
中科院分区：
文献类型：
--
作者：
Ayres, Jake;Katsnelson, Mikhail I.;Hussey, Nigel E.
虽然赝能隙主导了空穴掺杂铜氧化物的相图，将低掺杂的反铁磁母体绝缘体连接到高掺杂的奇异金属，但其起源和与超导性的关系仍然未知。为了继续下去，一个完整的理解如何单一的孔-最初定位在莫特状态-成为移动的，并最终演变成一个连贯的准粒子在超导圆顶的结束是必需的。为了影响这一发展，我们检查最近的运输和光谱研究的空穴掺杂铜酸盐在其相图。在这个过程中，我们强调了一组经验的超流密度和空穴掺杂的铜酸盐的某些正常状态的属性，提供新的见解出现的金属性内的CuO 2平面及其对超导状态的鲁棒性的影响之间的相关性。我们得出结论认为，整体行为是最好的理解在两个不同的载流流体，其中只有一个占主导地位的超导冷凝物，并在一个临界空穴浓度p* 的赝隙端点以下的缺口。
While the pseudogap dominates the phase diagram of hole-doped cuprates, connecting the antiferromagnetic parent insulator at low doping to the strange metal at higher doping, its origin and relation to superconductivity remains unknown. In order to proceed, a complete understanding of how the single hole-initially localized in the Mott state-becomes mobile and ultimately evolves into a coherent quasiparticle at the end of the superconducting dome is required. In order to affect this development, we examine recent transport and spectroscopic studies of hole-doped cuprates across their phase diagram. In the process, we highlight a set of empirical correlations between the superfluid density and certain normal state properties of hole-doped cuprates that offer fresh insights into the emergence of metallicity within the CuO2 plane and its influence on the robustness of the superconducting state. We conclude by arguing that the overall behavior is best understood in terms of two distinct current-carrying fluids, only one of which dominates the superconducting condensate and is gapped out below the pseudogap endpoint at a critical hole concentration p*.