The superconducting nickelates were first proposed as potential analogs to the cuprate unconventional superconductors in 1999, but it took twenty years before superconductivity was successfully stabilized in epitaxial thin films. Since then, a flurry of both experimental and theoretical efforts have sought to understand the similarities and differences between the two systems and how they manifest in the macroscopic superconducting and normal state properties. Although the nickelates and cuprates indeed share many commonalities within their respective phase diagrams, several notable differences have also emerged, especially regarding their parent compounds, electronic hybridization, and fermiology. Here, we provide a survey of the rapidly developing landscape of layered nickelate superconductors, including recent experimental progress to probe not just the superconducting but also normal state and other ordered phases stabilized in these compounds.

中文翻译：

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超导镍酸盐实验进展


超导镍酸盐于 1999 年首次被提出作为铜酸盐非常规超导体的潜在类似物，但花了二十年的时间才在外延薄膜中成功稳定超导性。从那时起，一系列的实验和理论努力都试图了解这两个系统之间的异同，以及它们在宏观超导和正常状态特性中的表现。尽管镍酸盐和铜酸盐在各自的相图中确实有许多共同点，但也出现了一些显着的差异，特别是在它们的母体化合物、电子杂交和费米学方面。在这里，我们对层状镍酸盐超导体的快速发展前景进行了调查，包括最近不仅探测超导而且探测这些化合物中稳定的正常状态和其他有序相的实验进展。