High-pressure synthesis of bilayer nickelate Sr<sub>3</sub>Ni<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub> with a tetragonal crystal structure
Motivated by a theoretical prediction of its potential superconductivity under ambient pressure, a novel oxychloride, Sr<sub>3</sub>Ni<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub>, was synthesized for the first time. This synthesis utilized a high pressure of 10 GPa at 1673 K. 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 La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>, in line with theoretical expectation.
Authors
- Kensei Terashima (ORCID: https://orcid.org/0000-0003-0375-3043)
- Yoshitaka Matsushita (ORCID: https://orcid.org/0000-0002-4968-8905)
- Shintaro Adachi (ORCID: https://orcid.org/0000-0002-5165-5088)
- Yoshihiko Takano (ORCID: https://orcid.org/0000-0002-1541-6928)
- Takanobu Hiroto (ORCID: https://orcid.org/0000-0002-6176-5782)
- Kazuki Yamane (ORCID: https://orcid.org/0000-0002-0162-5411)
- Ryo Matsumoto (ORCID: https://orcid.org/0000-0002-1890-6658)
- Hiroya Sakurai (ORCID: https://orcid.org/0000-0003-1964-6023)
Institutions
- National Institute for Materials Science (JP)
- Kyoto University (JP)
Publication Details
- Journal
- Acta Crystallographica Section C Structural Chemistry
- Published
- 2025-03-24
- DOI
- https://doi.org/10.1107/s2053229625002281
- Citations
- 6
- Primary Topic
- Metallic Glasses and Amorphous Alloys
- Type
- article
- Field-Weighted Citation Impact
- 4.28
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Japan Society for the Promotion of Science