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Published on: August 2, 2019
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Recent progress in nickelate superconductors.
Yuxin Wang1,2, Kun Jiang1,2, Jianjun Ying3,4
1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
National Science Review
|October 13, 2025
Summary
Superconductivity in nickelate compounds offers new high-temperature superconductor research avenues. This review covers infinite layer, bilayer, and trilayer nickelate systems, highlighting progress and challenges in this emerging field.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Solid-State Chemistry
Background:
- The discovery of superconductivity in nickelate compounds has significantly advanced the study of high-temperature superconductors.
- Nickelates present a promising new class of materials for exploring novel superconducting mechanisms.
Purpose of the Study:
- To provide a comprehensive overview of recent advancements in nickelate superconductivity research.
- To discuss various nickelate systems, including infinite layer, bilayer, and trilayer structures.
- To identify emerging trends, challenges, and open questions in the field.
Main Methods:
- Review of existing literature on nickelate superconductivity.
- Analysis of superconducting properties in different nickelate structures (infinite layer, bilayer, trilayer).
- Discussion of materials synthesis and characterization techniques.
Main Results:
- Detailed examination of the hole-doped LaNiO[Formula: see text] system as the starting point for nickelate superconductivity.
- Exploration of superconducting phases in bilayer La[Formula: see text]Ni[Formula: see text]O[Formula: see text] under high pressure and in thin films.
- Investigation of trilayer La[Formula: see text]Ni[Formula: see text]O[Formula: see text] and related multilayer nickelates.
Conclusions:
- Nickelate superconductivity research is rapidly evolving, with diverse material structures showing promise.
- Key challenges remain in materials synthesis and characterization, hindering a full understanding of superconducting mechanisms.
- Future research should focus on addressing these limitations to uncover the fundamental drivers of superconductivity in these complex oxides.
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