Cathodoluminescence microcharacterization of forsterite in the chondrule experimentally grown under super cooling
Cathodoluminescence microcharacterization of forsterite in the chondrule experimentally grown under super cooling
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DOI：
10.1016/j.jlumin.2011.12.011
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发表时间：
2012-04-01
影响因子：
3.6
通讯作者：
Kimura, Y.
中科院分区：
文献类型：
--
作者：
Gucsik, A.;Tsukamoto, K.;Kimura, Y.
对实验室橄榄石球粒的阴极发光进行了表征，以阐明球粒在过冷熔体中的形成过程和晶体生长的相关机制。实验生长的橄榄石彩色CL图像在实验室球粒内部结构的主要分支处显示出明显的蓝色发光，这反映了结晶的各向异性。蓝绿区450 ~ 525 nm （2.76 ~ 2.36 eV）的新CL波段可能属于微缺陷相关中心，这是一个诊断峰，它是由过冷熔体快速生长形成的，生长速度接近10 mm/s或更高。(C) 2011 Elsevier B.V.版权所有
Cathodoluminescence (CL) of laboratory forsterite chondrules has been characterized to clarify the formation process of chondrules and related mechanism of the crystal growth in a supercooled melt. Color CL image of the experimentally grown forsterite exhibits significant blue luminescence in the main branches of the interior structure of lab-chondrule, which reflects to the anisotropy of crystallization. A new CL band centered at 450-525 nm (2.76-2.36 eV) in blue to green region might be assigned to a microdefect-related center, which is a diagnostic peak for the forsterite that was formed due to the rapid growth as high as similar to 10 mm/s or higher from a supercooled melt. (C) 2011 Elsevier B.V. All rights reserved.