| Autor: |
Yamasaki, A., Imada, S., Takase, K., Muro, T., Kato, Y., Kobori, H., Sugimura, A., Umeyama, N., Sato, H., Hara, Y., Miyakawa, N., Ikeda, S. I. |
| Rok vydání: |
2009 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. B 82, 184511 (2010) |
| Druh dokumentu: |
Working Paper |
| Popis: |
We have investigated the electronic structures of newly discovered superconductor FeSe1-x by bulk-sensitive photoemission spectroscopy (PES). The large Fe 3d spectral weight is located in the vicinity of the Fermi level (EF) and it decreases steeply toward EF . Compared with results of band structure calculations, narrowing the Fe 3d band width and the energy shift of the band toward EF are found, suggesting a mass enhancement due to the weak electron correlation effect. Meanwhile, Fe 2p core-level PES reveals a strong itinerant character of Fe 3d electrons. These features are very similar to those in other Fe-based high-Tc superconductors. |
| Databáze: |
arXiv |
| Externí odkaz: |
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