高温高压下利用金刚石压腔实验技术对材料Raman光谱的研究

Raman spectroscopy study of materials using diamond anvil cell technology under high-temperature and high-pressure

金刚石对顶砧装置(diamond anvil cell,DAC)是静态超高压装置的一种,由于金刚石具有高的硬度和良好的透光性,因此这种装置所实现的压力和能测量物性的种类都优于其他高压装置。Raman光谱是表征物质结构及其变化的一种重要手段,DAC超高压实验技术与激光Raman光谱测试方法相结合,为高压下物质结构相变研究提供了一种有效途径。实验利用金刚石压腔实验技术在高温高压条件下对氧化镓、硫酸锶固体材料进行了Raman光谱的测量。

Diamond anvil cell （DAC）is a kind of static ultra-high pressure device with advantages of high hardness and good transmittance which is superior than other high-pressure device. Raman spectrum is an important means for characterizing the structure and the changes of matter. The combination of DAC high pressure experimental technique and laser Raman spectroscopy can provide an effective way for high-pressure structural change. In this paper the β-Ga2O3 and SrSO4 are studied using diamond anvil cell under high-temperature and high-pressure conditions.