2007年3月
Effect of encapsulated atoms on the electronic structure of the fullerene cage: A case study on La-2@C-78 and Ti2C2@C-78 via ultraviolet photoelectron spectroscopy
PHYSICAL REVIEW B
- 巻
- 75
- 号
- 12
- 開始ページ
- 125418-1-5
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevB.75.125418
- 出版者・発行元
- AMER PHYSICAL SOC
Ultraviolet photoelectron spectra (UPS) of metallofullerene, La-2@C-78 were measured using a synchrotron-radiation light source. Its spectral onset energy was 0.70 eV below the Fermi level, indicating the semiconductive nature of this metallofullerene. The UPS consisted of numerous crests and troughs. Further, a change in intensity upon tuning the excitation energy was observed; however, the intensity of the change was not as large as those observed for other fullerenes. The UPS of La-2@C-78 differ considerably from those of Ti2C2@C-78, although they are thought to have the same cage structure. Herein, this difference is explored using density-functional theory, and the origin of this difference was determined to be the hybridization of the pi-electron wave functions.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevB.75.125418
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000245330200095