Diamond as pressure sensor in high‐pressure Raman spectroscopy using sapphire and other gem anvil cells
作者： Valentín García Baonza , Mercedes Taravillo , Amaya Arencibia , Mercedes Cáceres , Javier Núñez
DOI: 10.1002/JRS.998
关键词:
摘要: We propose a new Raman pressure scale based on the shift with of fundamental band micrometer-sized diamonds. First, we confirmed that slope triply degenerate diamond phonon behaves in similar fashion to bulk. Our measurements were calibrated against Sm:YAG fluorescence up 5 GPa using gasketed sapphire anvil cell. The most relevant features regarding design cell are briefly outlined. Measurements performed under hydrostatic conditions 4 : 1 methanol–ethanol as pressure-transmitting medium. calibration pressures according relationship p(GPa) = 0.356[ν(cm−1) − 1332.3] considered be accurate within about 0.1 GPa. convenience diamonds sensors studies gem devices is demonstrated several examples. Copyright © 2003 John Wiley & Sons, Ltd.
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