与远距离空间涨落强相关的超导性

IF 2.9 4区物理与天体物理 Q2 OPTICS

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-24 DOI:10.1088/2515-7639/ac7e6d

Motoharu Kitatani, R. Arita, T. Schäfer, K. Held

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引用次数: 9

摘要

本文综述了近年来利用动力学平均场理论的图解扩展对超导性的研究。这些方法同时考虑了局部相关效应和空间远程波动，这是描述准二维平面中非常规超导性所必需的。结果再现并预测了铜酸盐和镍酸盐等强相关体系的实验相图。进一步的研究表明，配对相互作用顶点的动态筛选效应对转变温度有显著影响，甚至可能支持奇频配对等奇异机制。我们还讨论了层状材料的维度以及如何在二维上解释数值结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Strongly correlated superconductivity with long-range spatial fluctuations

We review recent studies for superconductivity using diagrammatic extensions of dynamical mean field theory. These approaches take into account simultaneously both, the local correlation effect and spatial long-range fluctuations, which are essential to describe unconventional superconductivity in a quasi-two-dimensional plane. The results reproduce and predict the experimental phase diagrams of strongly correlated system such as cuprates and nickelates. Further studies reveal that the dynamical screening effect of the pairing interaction vertex has dramatic consequences for the transition temperature and may even support exotic mechanisms like odd-frequency pairing. We also discuss the dimensionality of layered materials and how to interpret the numerical results in two dimensions.

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来源期刊

Journal of Nonlinear Optical Physics & Materials 物理-光学

CiteScore

3.00

自引率

48.10%

发文量

审稿时长

3 months

期刊介绍： This journal is devoted to the rapidly advancing research and development in the field of nonlinear interactions of light with matter. Topics of interest include, but are not limited to, nonlinear optical materials, metamaterials and plasmonics, nano-photonic structures, stimulated scatterings, harmonic generations, wave mixing, real time holography, guided waves and solitons, bistabilities, instabilities and nonlinear dynamics, and their applications in laser and coherent lightwave amplification, guiding, switching, modulation, communication and information processing. Original papers, comprehensive reviews and rapid communications reporting original theories and observations are sought for in these and related areas. This journal will also publish proceedings of important international meetings and workshops. It is intended for graduate students, scientists and researchers in academic, industrial and government research institutions.