TOPICAL REVIEW — Synergetic Extreme Condition User Facility: Breakthroughs and opportunities for the research of physical science Function of large-volume high-pressure apparatus at SECUF
TOPICAL REVIEW — Synergetic Extreme Condition User Facility: Breakthroughs and opportunities for the research of physical science Function of large-volume high-pressure apparatus at SECUF
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压力允许精确调整基本参数，即原子间距离，它控制电子结构和几乎所有决定材料性质的原子间相互作用。因此，压力调谐是寻找具有增强性能的新材料的有效工具。为了实现对物质的压力调谐，大体积压力（LVP）装置已经被广泛地用于不仅合成新材料而且实现物理性质的原位测量。本文介绍了吉林大学协同极端条件用户实验室（SECUF）即将建设的LVP实验装置，包括带式、立方砧和6-8型多砧实验装置。通常，在20 GPa下，在带式装置中可以获得1000 mm 3的单元体积，其显著大于在相同压力下在6-8型多砧装置中获得的单元体积。此外，物理性质的现场测量，包括热、电和机械行为，耦合到这些LVP设备。文中还介绍了合成实验和LVP装置现场测量的一些典型结果。
Pressure allows the precise tuning of a fundamental parameter, the interatomic distance, which controls the electronic structure and virtually all interatomic interactions that determine material properties. Hence, pressure tuning is an effective tool in the search for new materials with enhanced properties. To realize pressure tuning on matter, large-volume press (LVP) apparatuses have been widely used not only to synthesize novel materials but also to implement the in situ measurement of physical properties. Herein, we introduce the LVP apparatuses, including belt-type, cubic anvil, and 6–8 type multi-anvil, that will be constructed at the Synergetic Extreme Condition User Facility (SECUF) at Jilin University. Typically, cell volumes of 1000 mm 3 can be obtained at 20 GPa in a belt-type apparatus that is significantly larger than that obtained in a 6–8 type multi-anvil apparatus at the same pressure. Furthermore, the in situ measurement of physical properties, including thermological, electrical, and mechanical behaviors, is coupled to these LVP apparatuses. Some typical results of both synthetic experiments and in situ measurements obtained from the LVP apparatuses are also reviewed.