Temperature-dependent high-resolution photoemission study of Y1-xCaxTiO3

被引：7
|
作者：
Arita, M [1 ]
Takeda, Y
Okamura, Y
Sato, H
Shimada, K
Mamiya, K
Namatame, H
Taniguchi, M
Tsubota, M
Iga, F
Takabatake, T
机构：
[1] Hiroshima Univ, Fac Sci, Higashihiroshima 7398526, Japan
[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7398526, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷
关键词：
Y1-xCaxTiO3; photoemission; Mott insulator; metal-insulator transition;
D O I：
10.7567/JJAPS.38S1.206
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Temperature-dependent high-resolution photoemission spectroscopy has been performed on Y1-xCaxTiO3 (x=0.37, 0.39, 0.41) single crystals. Electrons in Ti 3d bands are strongly correlated and clear metal-insulator transition is observed in the photoemission spectra for x=0.39. The spectral shapes of O 2p and Ti 2p states are temperature dependent indicating strong coupling between electronic states and lattice distortion.
引用
收藏
页码：206 / 208
页数：3
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