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ヤマガミ ヒロシ
YAMAGAMI HIROSHI
山上 浩志 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2011/10 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Electronic structure of aluminium trihydride studied using soft x-ray emission and absorption spectroscopy |
| 執筆形態 | その他 |
| 掲載誌名 | PHYSICAL REVIEW B |
| 出版社・発行元 | AMER PHYSICAL SOC |
| 巻・号・頁 | 84(15) |
| 担当区分 | 責任著者 |
| 著者・共著者 | Y. Takeda,Y. Saitoh,H. Saitoh,A. Machida,K. Aoki,H. Yamagami,T. Muro,Y. Kato,T. Kinoshita |
| 概要 | We have performed soft x-ray emission spectroscopy (SXES) and soft x-ray absorption spectroscopy (SXAS) experiments on aluminum hydride alpha-AlH(3). The occupied and unoccupied electronic states of the Al 3p partial density of states are obtained experimentally. By comparing the data from Al metal and alpha-AlH(3), a band gap with a few eV is found for alpha-AlH(3). In addition, the occupied states of alpha-AlH(3) have a larger spectral intensity than that of Al metal, indicating an increase in the number of electrons with the Al 3p character through Al-H bond formations. The results of a band-structure calculation account for the formation of the energy gap and the increase of the Al 3p electrons qualitatively. This suggests that a covalent-like nature is important to the Al-H bond in alpha-AlH(3). |
| DOI | 10.1103/PhysRevB.84.153102 |
| ISSN | 1098-0121 |