Effect of La doping on the electronic structure of SrTiO3

被引：0

作者：

Matsushima, Shigenori ^{[1
]}

Kohiki, Shigemi ^{[2
]}

Oku, Masaoki ^{[3
]}

机构：

[1] Department of Chemical Engineering, Kitakyushu Natl. Coll. of Technology, 5-20-1, Shii, Kitakyushu-shi 802-0985, Japan

[2] Department of Materials Science, Faculty of Engineering, Kyushu Institute of Technology, 1-1, Sensui-cho, Tobata-ku, Kitakyushu-shi 804-8550, Japan

[3] Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai-shi 980-8577, Japan

来源：

Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan | 2000年 / 108卷 / 1257期

关键词：

Addition reactions - Band structure - Composition effects - Doping (additives) - Electronic structure - Reaction kinetics - Single crystals - Strontium compounds - X ray photoelectron spectroscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

For undoped-SrTiO3 and La-doped SrTiO3 single crystals, X-ray photoemission spectroscopy (XPS) measurements were performed with monochromated Al Kα radiation. Valence band (VB) spectra of as-fractured SrTiO3 exhibit two peaks, P1 and P2, arising from the O 2pπ and O 2pσ bonding orbitals, respectively. Upon adding 3.0 atm% of La to SrTiO3, the valley between P1 and P2 disappears in the VB spectrum. Calculated VB spectra obtained from a molecular orbital calculation reproduce well the experimental XPS spectra for the samples.

引用

页码：518 / 520

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