Photoemission study of CeO2 and SrCeO3

被引:16
作者
Matsumoto, M
Soda, K
Ichikawa, K
Taguchi, Y
Jouda, K
Kageyama, M
Tanaka, S
Sata, N
Tezuka, Y
Shin, S
Kimura, S
Aita, O
机构
[1] NAGOYA UNIV,SCH ENGN,DEPT CRYSTALLINE MAT SCI,NAGOYA,AICHI 46401,JAPAN
[2] UNIV TOKYO,INST SOLID STATE PHYS,TOKYO 106,JAPAN
关键词
D O I
10.1016/S0368-2048(96)80056-9
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Photoemission spectra of CeO2 and SrCeO3 have been measured in the Ce 4d --> 4f photoabsorption region. The yield spectra of these compounds resemble each other in shape. The valence-band emission of SrCeO3 shows the resonant enhancement in the giant absorption region and the 4f-derived emission exhibits a single-peak distribution such as obtained in CeO2. Moreover, the Ce 3d photoemission spectrum of SrCeO3 has a three-peak structure. These results indicate the strength of the hybridization between the Ce 4f and O 2p states in the ground state of SrCeO3 is similar to that in CeO2.
引用
收藏
页码:179 / 182
页数:4
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