Study on Confinement Effect of Phonon Like Modes for Mesoscopic Aggregation Structure of Glasses Phases in the Imitating Magmatic Rocks by Raman Spectra
XU Pei-cang1, LI Ru-bi1, SHANG Tong-ming1, ZHOU Jian1, SUN Jian-hua1, WANG Yuan-yuan2
1. Institute of Applied Materials, Jiangsu University of Technology, Changzhou 213001, China 2. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
Abstract：In the present paper,the mesoscopic aggregation structure parameters and the phonon confinement effect like modes of these glass phases in the imitating ultrabasic rock(MU), imitating basic rock(MB), imitating intermediate rock(MI) & imitating acidic rock(MA) were detected by means of phonon dispersion theory，quatume chemical calculation(ab initio)and LWRS, RS analysis technology. The phonon dispersion curves like modes of the MU, MB, MI and MA have were established. It was obtained that as fast as the mesoscopic aggregation size was increasing,the low frequency changes of the phonics phonon like modes transverse wave(TA) & longitudinal wave(LA) were red shifted, the medium & high frequency changes of the optics phonon like modes transverse wave(TO) & longitudinal wave(LO) were blue shifted, the width at half maximum of Raman spectra peak(FWHM) was decreasing and the change bound of the aggregation size was increasing. These conclusions not only enriched the theory of phonon dispersion like modes in the low dimension silicates and its melts，but also exploited new field of Raman spectroscopic study of mesoscopic structure in magmatic rocks. It provides important information for deliberating crystallization,evolution and ore-forming rule of natural magma.
Key words：Imitating magmatic rocks;Phonon like modes;Confinement effect;Dispersion curves;Raman spectra
徐培苍1, 李如璧1, 尚通明1, 周 健1, 孙建华1, 王媛嫒2 . 仿岩浆岩玻璃相介观团粒结构类声子限制效应的拉曼光谱研究 [J]. 光谱学与光谱分析, 2013, 33(08): 2112-2116.
XU Pei-cang1, LI Ru-bi1, SHANG Tong-ming1, ZHOU Jian1, SUN Jian-hua1, WANG Yuan-yuan2 . Study on Confinement Effect of Phonon Like Modes for Mesoscopic Aggregation Structure of Glasses Phases in the Imitating Magmatic Rocks by Raman Spectra. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(08): 2112-2116.
