High-pressure synthesis of bilayer nickelate Sr₃Ni₂O₅Cl₂ with tetragonal crystal structure

2024/12/12 by Kazuki Yamane, Yoshitaka Matsushita, Yamane, Kazuki +13 · 3 citations
Earth and Planetary Sciences · Engineering · #Advanced materials and composites #FOS: Physical sciences #High-pressure geophysics and materials #Metallic Glasses and Amorphous Alloys #Superconductivity (cond-mat.supr-con)

paper · pdf · doi:10.48550/arxiv.2412.09093

openalex publication_date 2024/12/12 · openalex created_date 2024/12/14 · openalex updated_date 2026/07/28

Abstract

A novel oxychloride, Sr₃Ni₂O₅Cl₂, was synthesized for the first time under high pressure of 10 GPa at 1400 ^∘C, motivated by a theoretical prediction of its potential superconductivity under ambient pressure. Small single crystals were used to determine the crystal structure and measure the temperature dependence of electrical resistance. The crystal is isostructural with the recently discovered superconductor, La₃Ni₂O₇, in line with the theoretical expectation.

Cited by

• Stabilization of Tetragonal Phase and Aluminum-Doping Effect in a Bilayer Nickelate
• Theoretical study on ambient pressure superconductivity in La₃Ni₂O₇ thin films : structural analysis, model construction, and robustness of s±-wave pairing
• Orbital Order and Superconductivity in Bilayer Nickelate Compounds

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