Superconducting phase diagram of multilayer square-planar nickelates
The discovery of superconductivity in square-planar nickelates has offered a rich materials platform to explore the origins of high-temperature superconductivity. However, experimental investigations have largely been limited to the infinite-layer R NiO 2 ( R , rare earth) nickelates. We constructed a phase diagram of multilayer square-planar Nd n +1 Ni n O 2 n +2 compounds and found signatures of superconductivity for dimensionality n = 4 to 8. Upon decreasing n , the superconducting anisotropy evolves owing to 4 f electron effects, and electronic structure characteristics approach cuprate-like behavior. Magnetic fluctuations persist from within the superconducting regime and into the overdoped, nonsuperconducting regime. The superconducting regime overlaps with that of chemically doped infinite-layer nickelates, demonstrating underlying commonalities as well as differences across varying structural realizations of square-planar nickelates. Our work establishes this layered template for creating new nickel-based superconductors.
Authors
- Harrison LaBollita (ORCID: https://orcid.org/0000-0002-6699-8577)
- Stefano Agrestini (ORCID: https://orcid.org/0000-0002-3625-880X)
- Hua Zhou (ORCID: https://orcid.org/0000-0001-9642-8674)
- Julia A. Mundy (ORCID: https://orcid.org/0000-0001-8454-0124)
- Ke‐Jin Zhou (ORCID: https://orcid.org/0000-0001-9293-0595)
- Ari B. Turkiewicz (ORCID: https://orcid.org/0000-0001-5729-0289)
- Jonathan Pelliciari (ORCID: https://orcid.org/0000-0003-1508-7746)
- David Anthony Muller (ORCID: https://orcid.org/0000-0003-4129-0473)
- Sophia F. R. TenHuisen (ORCID: https://orcid.org/0000-0002-4379-7035)
- Valentina Bisogni (ORCID: https://orcid.org/0000-0002-7399-9930)
- Abhishek Nag (ORCID: https://orcid.org/0000-0002-1394-5105)
- Qi Song (ORCID: https://orcid.org/0000-0002-1254-4131)
- A. Jiang (ORCID: https://orcid.org/0000-0001-8003-8380)
- Antía S. Botana (ORCID: https://orcid.org/0000-0001-5973-3039)
- Matteo Mitrano (ORCID: https://orcid.org/0000-0002-0102-0391)
- Berit Hansen Goodge (ORCID: https://orcid.org/0000-0003-0948-7698)
- Lopa Bhatt (ORCID: https://orcid.org/0000-0001-5183-2761)
- Grace A. Pan (ORCID: https://orcid.org/0000-0002-4512-1215)
- M. P. M. Dean (ORCID: https://orcid.org/0000-0001-5139-3543)
- Lena F. Kourkoutis (ORCID: https://orcid.org/0000-0002-1303-1362)
- Hanjong Paik (ORCID: https://orcid.org/0000-0002-8363-4679)
- Charles M. Brooks (ORCID: https://orcid.org/0000-0001-9087-7321)
- Dan Ferenc Segedin (ORCID: https://orcid.org/0000-0001-7162-8100)
- Denitsa R. Baykusheva
Institutions
- Argonne National Laboratory (US)
- Harvard University (US)
- Brookhaven National Laboratory (US)
- Cornell University (US)
- Diamond Light Source (GB)
- Interface (United States) (US)
- Max Planck Institute for Chemical Physics of Solids (DE)
- Arizona State University (US)
Publication Details
- Journal
- Science
- Published
- 2026-06-25
- DOI
- https://doi.org/10.1126/science.adp4440
- Primary Topic
- Magnetic and transport properties of perovskites and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- David and Lucile Packard Foundation
- U.S. Department of Energy
- Alfred P. Sloan Foundation
- Gordon and Betty Moore Foundation
- Paul and Daisy Soros Fellowships for New Americans
- Rhodes Scholarships
- Ford Foundation Fellowships