{"title":"Probing nickelate superconductors at atomic scale: A STEM review","authors":"Yihan Lei, Yanghe Wang, Jiahao Song, Jinxin Ge, Dirui Wu, Yingli Zhang, Changjian Li","doi":"10.1088/1674-1056/ad6a0d","DOIUrl":null,"url":null,"abstract":"The discovery of nickelate superconductors, including doped infinite-layer (IL) nickelates <italic toggle=\"yes\">R</italic>NiO<sub>2</sub> (<italic toggle=\"yes\">R</italic> = La, Pr, Nd), layered square-planar nickelate Nd<sub>6</sub>Ni<sub>5</sub>O<sub>12</sub>, and the Ruddlesden–Popper (RP) phase La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>, has spurred immense interest in fundamental research and potential applications. Scanning transmission electron microscopy (STEM) has proven crucial for understanding structure–property correlations in these diverse nickelate superconducting systems. In this review, we summarize the key findings from various modes of STEM, elucidating the mechanism of different nickelate superconductors. We also discuss future perspectives on emerging STEM techniques for unraveling the pairing mechanism in the “nickel age” of superconductivity.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Physics B","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1674-1056/ad6a0d","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The discovery of nickelate superconductors, including doped infinite-layer (IL) nickelates RNiO2 (R = La, Pr, Nd), layered square-planar nickelate Nd6Ni5O12, and the Ruddlesden–Popper (RP) phase La3Ni2O7, has spurred immense interest in fundamental research and potential applications. Scanning transmission electron microscopy (STEM) has proven crucial for understanding structure–property correlations in these diverse nickelate superconducting systems. In this review, we summarize the key findings from various modes of STEM, elucidating the mechanism of different nickelate superconductors. We also discuss future perspectives on emerging STEM techniques for unraveling the pairing mechanism in the “nickel age” of superconductivity.
期刊介绍：
Chinese Physics B is an international journal covering the latest developments and achievements in all branches of physics worldwide (with the exception of nuclear physics and physics of elementary particles and fields, which is covered by Chinese Physics C). It publishes original research papers and rapid communications reflecting creative and innovative achievements across the field of physics, as well as review articles covering important accomplishments in the frontiers of physics.
Subject coverage includes:
Condensed matter physics and the physics of materials
Atomic, molecular and optical physics
Statistical, nonlinear and soft matter physics
Plasma physics
Interdisciplinary physics.
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