ABSTRACT Current anvil designs and problems associated with various efforts to generate static high pressures beyond the limit of conventional diamond anvil cells (DACs) (∼400 GPa) are reviewed. Pressures of up to 1 TPa have been reported by one research group using the double-stage DAC (ds-DAC) technique, but no other research group has successfully reproduced this high pressure result. Some research groups have used toroidal anvils, achieving pressures of >400 GPa. We have conducted numerous ds-DAC experiments and investigated the problems associated with such experiments. They include problems associated with various pressure scales in the multi-megabar region, difficulties in obtaining reliable X-ray diffraction patterns from micron-sized samples, and physical property measurements of tiny materials that may be harder than diamond. Each of these problems is discussed, following the summary of various experiments.

中文翻译：

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回顾：超越传统金刚石砧座的高压产生技术

摘要回顾了当前的砧座设计以及与产生超出传统金刚石砧座单元（DAC）（~400 GPa）极限的静态高压的各种努力相关的问题。一个研究小组使用双级 DAC (ds-DAC) 技术报告了高达 1 TPa 的压力，但没有其他研究小组成功复制了这种高压结果。一些研究小组使用了环形砧，实现了 >400 GPa 的压力。我们进行了大量 ds-DAC 实验并研究了与此类实验相关的问题。它们包括与多兆巴区域的各种压力等级相关的问题、难以从微米级样品获得可靠的 X 射线衍射图以及可能比金刚石更硬的微小材料的物理特性测量。