| Autor: |
Jia Xiao, Liu Hai, Zhang Wen, Zhao Lin, Meng Jian, Liu Guo, Dong Xiao, Wu Gang, Liu Rong, Chen Xian, Ren Zhi, Yi Wei, Che Guang, Chen Gen, Wang Nan, Wang Gui, Zhou Yong, Zhu Yong, Wang Xiao, Zhao Zhong |
| Předmět: |
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| Zdroj: |
Chinese Physics Letters; Oct2008, Vol. 25 Issue 10, p3765-3768, 4p |
| Abstrakt: |
High resolution photoemission measurements are carried out on non-superconducting LaFeAsO parent compound and various superconducting RFeAs(O1-xFx) (R=La, Ce and Pr) compounds. It is found that the parent LaFeAsO compound shows a metallic character. By extensive measurements, several common features are identified in the electronic structure of these Fe-based compounds: (1) 0.2 eV feature in the valence band, (2) a universal 13-16 meV feature, (3) near Ef spectral weight suppression with decreasing temperature. These universal features can provide important information about band structure, superconducting gap and pseudogap in these Fe-based materials. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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