Relationship between Average Cation Radii and Oxygen Parameter for Various Oxides with Spinel-Type Structure
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- Yokoyama Takashi
- Yokohama National University
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- Meguro Takeshi
- Yokohama National University
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Abstract
For the relationship among lattice constant (a), average cation radii, and oxygen parameter (u) in oxides with a spinel structure, a theoretical equation is derived as u=(\\barrA−\\barrB)⁄{(1+\\sqrt3)a}+1.058⁄(1+\\sqrt3). Here, \\barrA is the average cation radius at tetrahedral sites, and \\barrB is the average cation radius at octahedral sites in a spinel structure. This equation means that u is expressed as a linear function of (\\barrA−\\barrB)⁄a. In this study, the validity of the above equation was comprehensively investigated using various values based on the cation distributions containing the u parameter reported by other researchers. The cation radii reported by Shannon were applied. As a result, the plotted points were found to lie almost on the theoretical line, although the points were concentrated in a local region. Therefore, it was concluded that the reported values of u and the average radii calculated on the basis of the cation distributions are generally reasonable.
Journal
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 44 (8), 6201-6203, 2005
The Japan Society of Applied Physics
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Keywords
Details 詳細情報について
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- CRID
- 1390001206265084928
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- NII Article ID
- 40006818300
- 210000058638
- 130004534589
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- NII Book ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL BIB ID
- 7402660
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed