通过共焦拉曼光谱法鉴定类金刚石B-C相

Identification of the diamond-like B-C phase by confocal Raman spectroscopy.

作者信息

Zinin P V, Kudryashov I, Konishi N, Ming L C, Solozhenko V L, Sharma S K

机构信息

School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI 96822, USA.

出版信息

Spectrochim Acta A Mol Biomol Spectrosc. 2005 Aug;61(10):2386-9. doi: 10.1016/j.saa.2005.02.017.

DOI:10.1016/j.saa.2005.02.017

PMID:16029861

Abstract

The new diamond-like B-C phase was obtained from the graphite-like BC phase in a laser-heated diamond anvil cell at high temperature 2230+/-140 K and high pressure 45 GPa. Raman spectra of the new phase measured at ambient conditions revealed a peak at 1315 cm(-1), which was attributed to longitudinal-optical (LO) mode. The X-Y Raman mapping was used to investigate spatial distribution of the diamond-like phases and was shown to be a powerful tool in studying the sp(2)-to-sp(3) phase transformations occurring in the diamond cell under high temperature and high pressure.

摘要

新型类金刚石B-C相是在高温2230±140 K和高压45 GPa的激光加热金刚石砧盒中由类石墨BC相获得的。在环境条件下测量的该新相的拉曼光谱显示在1315 cm(-1)处有一个峰，该峰归因于纵向光学（LO）模式。X-Y拉曼映射用于研究类金刚石相的空间分布，并且被证明是研究在高温高压下金刚石盒中发生的sp(2)到sp(3)相变的有力工具。