Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5401039 | Journal of Luminescence | 2012 | 7 Pages |
Abstract
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 450-525Â nm (2.76-2.36Â 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 â¼10Â mm/s or higher from a supercooled melt.
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Physical and Theoretical Chemistry
Authors
A. Gucsik, K. Tsukamoto, H. Nishido, H. Miura, M. Kayama, K. Ninagawa, Y. Kimura,