| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
High-pressure Raman study of the iodine-doped silicon clathrate I8Si44I2 |
|
言語 |
en |
| 作成者 |
Shimizu, Hiroyasu
Kume, Tetsuji
Kubota, Toyoki
Sasaki, Shingo
Fukuoka, Hiroshi
Yamanaka, Shoji
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
権利情報 |
Copyright (c) 2003 American Physical Society |
| 主題 |
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|
主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
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|
内容記述 |
Raman scattering measurements of an iodine-doped I8Si44I2 clathrate have been performed at pressures up to 28 GPa and 296 K. We found two Raman peaks at 75 and 101 cm-1 associated with the vibrations of guest I atoms inside the host Si cages, and observed some framework vibrations around 120–500 cm-1. These characteristic Raman bands and their pressure dependence are investigated in consideration of our recent Ba8Si46 studies. The lowest-frequency framework vibration at 133 cm-1 shows the softening with pressure, which seems to be the common feature of Si clathrates. A strong and broad Raman band centered at 461 cm-1 is identified to the highest-frequency framework vibration, which is likely intensified and broadened by the considerable framework distortion due to the replacement of framework Si with larger I atom. No obvious pressure-induced phase transition was found up to 28 GPa. The guest-host interactions are investigated by the present vibrational properties and are compared with those of previous neutron studies of I8Si44I2. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
American Physical Society |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1103/PhysRevB.68.212102 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1103/PhysRevB.68.212102 |
| 収録物識別子 |
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|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11187113 |
| 収録物識別子 |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1098-0121 |
| 開始ページ |
|
|
開始ページ |
2121021 |
| 書誌情報 |
Physical Review B - Condensed Matter and Materials Physics
Physical Review B - Condensed Matter and Materials Physics
巻 68,
号 21,
p. 2121021,
発行日 2003-12
|
| 旧ID |
16637 |
PhysRevB_68_212102.pdf (62.9 KB)
