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

页码：206 / 208

页数：3

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