论文标题
评论：使用静态压缩的FCC超离子水冰的证据和稳定性领域
Comment on: Evidence and Stability Field of fcc Superionic Water Ice Using Static Compression
论文作者
论文摘要
Weck等。 （1）报告H2O ICE在高P-T（P-T）条件下H2O ICE的两个超离子（Si）阶段的存在和稳定场，这一直是静态和动态实验和理论计算的话题（请参见参考文献（2）及其中的参考文献）。他们确认参考。 （2）因为有两个SI相，具有BCC和FCC氧气的氧气，在低P和高P处具有稳定性。但是，他们报告了FCC-SI冰的扩展稳定性领域，但没有57 GPA以下的迹象。在这里，我们认为，由于难以执行足够的X射线衍射（XRD）和辐射测量值，FCC-SI相报告的相位边界在实验上没有很好的合理性。
Weck et al. (1) report on the existence and stability fields of two superionic (SI) phases of H2O ice at high P-T (P-T) conditions, which has been a topic of static and dynamic experiments and theoretical calculations (see Ref. (2) and references therein). They confirm Ref. (2) in that there are two SI phases with bcc and fcc oxygen sublattices with the stability at low- and high-P. However, they report on an extended stability field of fcc-SI ice toward lower T but no sign of it below 57 GPa. Here we argue that the reported phase boundaries of fcc-SI phase are not well experimentally justified due to difficulties to perform adequate X-ray diffraction (XRD) and radiometric measurements.
