高压合成具有四方晶体结构的双层镍酸盐Sr3Ni2O5Cl2。

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Acta Crystallographica Section C Structural Chemistry Pub Date : 2025-05-01 Epub Date: 2025-04-04 DOI:10.1107/S2053229625002281

Kazuki Yamane, Yoshitaka Matsushita, Shintaro Adachi, Takanobu Hiroto, Ryo Matsumoto, Kensei Terashima, Hiroya Sakurai, Yoshihiko Takano

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引用次数: 0

摘要

基于对其在常压下潜在超导性的理论预测，首次合成了一种新型氯氧化合物Sr3Ni2O5Cl2。该合成工艺在1673 K下使用了10gpa的高压。小单晶被用来确定晶体结构和测量电阻的温度依赖性。该晶体与新发现的超导体La3Ni2O7具有相同的结构，符合理论预期。

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

Motivated by a theoretical prediction of its potential superconductivity under ambient pressure, a novel oxychloride, Sr₃Ni₂O₅Cl₂, 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 La₃Ni₂O₇, in line with theoretical expectation.

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来源期刊

Acta Crystallographica Section C Structural Chemistry CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

1.60

自引率

12.50%

发文量

148

期刊介绍： Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.