通过光学浮区法生长的三方金红石结构MgTaO单晶的拉曼散射。

The Raman scattering of trirutile structure MgTaO single crystals grown by the optical floating zone method.

作者信息

Xu Dapeng, Gao Shuohui, Liu Wenqiang, Liu Ying, Zhou Qiang, Li Liang, Cui Tian, Yuan Hongming

机构信息

State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun Jilin China

China-Japan Union Hospital of Jilin University Changchun 130000 P. R. China.

出版信息

RSC Adv. 2019 Jan 8;9(2):839-843. doi: 10.1039/c8ra06113k. eCollection 2019 Jan 2.

DOI:10.1039/c8ra06113k

PMID:35517588

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9059477/

Abstract

Single crystals of the trirutile structure MgTaO were grown an optical floating zone method in an air atmosphere. The as-grown crystals were pale yellow and transparent and the natural cleavage plane formed during the crystal growth was determined by XRD2 to be along the -axis direction. The variations in valence were investigated by XPS (X-ray photoelectron spectroscopy). The room-temperature axis-relative polarized Raman spectra of trirutile MgTaO crystals were described. The order-disorder effect was detected temperature-dependent Raman spectroscopy.

摘要

采用光学浮区法在空气气氛中生长出了具有三方金红石结构的MgTaO单晶。生长出的晶体呈浅黄色且透明，通过XRD2确定晶体生长过程中形成的自然解理面沿c轴方向。通过X射线光电子能谱（XPS）研究了价态变化。描述了三方金红石结构MgTaO晶体在室温下的c轴相对偏振拉曼光谱。通过与温度相关的拉曼光谱检测到了有序-无序效应。