AVO₄ orthovanadates are materials of fundamental and technological importance due to the large variety of functional properties exhibited by them. These materials have potential applications such as scintillators, thermophosphors, photocatalysts, and cathodoluminescence materials among others. They are also used as laser-host crystals. Studies at high pressures and temperatures are helpful for understanding the physical properties of the solid state, in particular, the phase behaviour of AVO₄ materials. For instance, they have contributed to the understanding of the macroscopic properties of orthovanadates in terms of microscopic mechanisms. A great progress has been made in the last decade towards the study of the pressure-effects on the structural, vibrational, and electronic properties of AVO₄ compounds. Thanks to the combination of experimental and theoretical studies, novel metastable structures with interesting physical properties have been discovered and the high-pressure structural sequence followed by AVO₄ oxides has been understood. In this article, we will review high-pressure studies carried out on the phase behaviour of different AVO₄ compounds. The studied materials include rare-earth orthovanadates and other compounds; for example, BiVO₄, FeVO₄, CrVO₄, and InVO₄. In particular, we will focus on discussing the results obtained by different research groups, who have extensively studied orthovanadates up to pressures exceeding 50 GPa. We will make a systematic presentation and discussion of the different results reported in the literature. In addition, with the aim of contributing to the improvement of the actual understanding of the high-pressure properties of ternary oxides, the high-pressure behaviour of orhovanadates will be compared with related compounds; including phosphates, chromates, and arsenates. The behaviour of nanomaterials under compression will also be briefly described and compared with their bulk counterpart. Finally, the implications of the reported studies on technological developments and geophysics will be commented and possible directions for the future studies will be proposed.

甲VO _4个orthovanadates是基本的和技术重要性材料由于大的各种由它们表现出的功能性质。这些材料具有潜在的应用，例如闪烁体，热磷光体，光催化剂和阴极发光材料。它们还用作激光主体晶体。在高压和高温下进行的研究有助于理解固态的物理性质，尤其是A VO ₄的相态。材料。例如，它们有助于从微观机理上理解原钒酸盐的宏观性质。在过去的十年中，在研究A VO ₄化合物的结构，振动和电子特性的压力效应方面取得了很大的进步。由于实验和理论研究的结合，已发现具有令人感兴趣的物理性质的新型亚稳结构，并且已经理解了随后为A VO ₄氧化物的高压结构序列。在本文中，我们将回顾对不同A VO ₄的相行为进行的高压研究。化合物。研究的材料包括稀土原钒酸盐和其他化合物；例如BiVO ₄，FeVO ₄，CrVO ₄和InVO ₄。特别是，我们将集中讨论由不同研究小组获得的结果，他们对压力超过50 GPa的原钒酸盐进行了广泛的研究。我们将对文献中报道的不同结果进行系统的介绍和讨论。另外，为了促进对三元氧化物高压性质的实际理解的提高，将原钒酸盐的高压行为与相关化合物进行比较。包括磷酸盐，铬酸盐和砷酸盐。也将简要描述纳米材料在压缩下的行为，并将其与整体材料进行比较。最后，将对所报告的研究对技术发展和地球物理学的影响进行评论，并为未来的研究提出可能的方向。