State Key Laboratory of Superhard Materials, College of Physics , Jilin University , Changchun , Jilin 130012 , China.
ACS Appl Mater Interfaces. 2018 Jul 18;10(28):23481-23484. doi: 10.1021/acsami.8b08599. Epub 2018 Jul 9.
Materials with zero area compressibility (ZAC) can keep their crystal uncompressed in two specific directions upon uniform compression. High-pressure angle-dispersive X-ray powder diffraction (ADXRD) experiments reveal a ZAC phenomenon in the ab-plane in crystal of a formate-based perovskite, [C(NH)][Cd(HCOO)]. The ZAC behavior is ascribed to the unique rhombohedral [Cd(HCOO)] frameworks and confirmed by density functional theory (DFT) calculations. For the first time, a near ZAC single material is explicitly reported. This study opens up an exciting research field on pressure-resistant materials. We anticipate more ZAC materials to be discovered in the following explorations under the inspiration of this work.
具有零面压缩率（ZAC）的材料在均匀压缩时可以在两个特定方向上保持其晶体不被压缩。高压角度分散 X 射线粉末衍射（ADXRD）实验揭示了基于甲酸盐的钙钛矿[C(NH)][Cd(HCOO)]晶体中 ab 平面上的 ZAC 现象。ZAC 行为归因于独特的菱面体[Cd(HCOO)]框架，并通过密度泛函理论（DFT）计算得到证实。首次明确报道了一种近乎 ZAC 的单一材料。这项研究为耐压材料开辟了一个令人兴奋的研究领域。我们期望在这项工作的启发下，在接下来的探索中发现更多的 ZAC 材料。
