Mineralogical Crystallography as a Function of Temperature
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- NAKATSUKA Akihiko
- Graduate School of Science and Engineering, Yamaguchi University
Bibliographic Information
- Other Title
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- 温度をパラメータとした鉱物結晶学
- 温度をパラメータとした鉱物結晶学 : 原子変位挙動の解明
- オンド オ パラメータ ト シタ コウブツ ケッショウガク : ゲンシ ヘンイ キョドウ ノ カイメイ
- -Elucidation of Atomic Displacement Behavior-
- ―原子変位挙動の解明―
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Abstract
Application of the Debye model to the temperature dependence of atomic mean square displacements determined by X-ray diffraction provides individual knowledge of dynamic and static natures of atomic displacements, together with characteristic values of crystals such as Debye temperature and one particle potential coefficients. The anharmonic refinement, incorporating the higher-order terms into the Debye-Waller factor, is a useful technique to detect the deformation of the probability density functions from ellipsoidal distribution due to anharmonic thermal vibrations and static disorders of atoms. Here we review our recent research that applied these approaches to Mg3Al2Si3O12 garnet, an important constituent in the Earth's interior. The research has proved the presence of the Mg static disorder, which has long been a controversial issue, and has proposed the possibility of anharmonic thermal vibrations of atoms at high temperature.
Journal
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- Nihon Kessho Gakkaishi
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Nihon Kessho Gakkaishi 56 (3), 150-157, 2014
The Crystallographic Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679065567872
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- NII Article ID
- 130004552894
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- NII Book ID
- AN00188364
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- ISSN
- 18845576
- 03694585
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- NDL BIB ID
- 025636207
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
