Anomalous dynamical charge change behavior of nanocrystalline 3C-SiC upon compression
Article
Liu, H, Jin, C, Chen, J et al. (2004). Anomalous dynamical charge change behavior of nanocrystalline 3C-SiC upon compression
. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 87(12), 2291-2293. 10.1111/j.1151-2916.2004.tb07508.x
Liu, H, Jin, C, Chen, J et al. (2004). Anomalous dynamical charge change behavior of nanocrystalline 3C-SiC upon compression
. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 87(12), 2291-2293. 10.1111/j.1151-2916.2004.tb07508.x
Using diamond anvil cell (DAC) technique, in situ high-pressure Raman scattering and energy-dispersive X-ray diffraction (EDXRD) experiments were used at room temperature to study 3C-SiC with an average grain size of 30 nm. In contrast to its bulk counterpart, a decrease of the Bern's transverse effective charge of these nanocrystals was observed with increasing pressure from measurements of the longitudinal and transverse optical phonon modes (longitudinal optical-transverse optical) splitting. This is therefore indicative of a diminishing ionicity of nanocrystalline 3C-SiC on compression.
