Diamond as a high pressure gauge up to 2.7 Mbar
Diamond as a high pressure gauge up to 2.7 Mbar
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DOI：
10.1063/1.3529454
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发表时间：
2010-12-20
影响因子：
4
通讯作者：
Hanfland, Michael
中科院分区：
文献类型：
--
作者：
Dubrovinskaia, Natalia;Dubrovinsky, Leonid;Hanfland, Michael
压力计是金刚石压砧（DAC）高压实验的关键。在这里，我们提出了一种方法，在原位合成的微晶金刚石，可以进一步用作压力标准的过程中相同的DAC实验。将拉曼位移随压力的校准曲线扩展到270 GPa，并将实验结果与从头算结果进行了比较。(C)2010年美国物理学会。[doi：10.1063/1.3529454]
A pressure gauge is a key issue of any high pressure experiment in a diamond anvil cell (DAC). Here we present a method of in situ synthesis of microcrystals of diamond that can be further used as a pressure standard in the course of the same DAC experiment. Calibration curve of the Raman shift versus pressure is extended up to 270 GPa and experimental results are compared with those of ab initio calculations. (C) 2010 American Institute of Physics. [doi:10.1063/1.3529454]