Hole doping effect on the electronic structure of layered oxypnictide LaOMnAs

被引：2

作者：

Higashiya, A. ^{[1
,2
]}

Nakagawa, K. ^{[2
,3
]}

Yamasaki, A. ^{[2
,3
]}

Nagai, K. ^{[2
,4
]}

Fujioka, S. ^{[2
,4
]}

Kanai, Y. ^{[2
,4
]}

Yamagami, K. ^{[2
,4
]}

Fujiwara, H. ^{[2
,4
]}

Sekiyama, A. ^{[2
,4
]}

Abozeed, Amina ^{[2
,5
]}

Kadono, T. ^{[2
,5
]}

Imada, S. ^{[2
,5
]}

Kuga, K. ^{[2
]}

Yabashi, M. ^{[2
]}

Tamasaku, K. ^{[2
]}

Ishikawa, T. ^{[2
]}

Toyama, S. ^{[6
]}

Takase, K. ^{[6
]}

机构：

[1] Setsunan Univ, Fac Sci & Engn, Neyagawa, Osaka, Japan

[2] R1KEN SPring 8, Sayo, Japan

[3] Konan Univ, Dept Phys, Fac Sci & Engn, Kobe, Hyogo, Japan

[4] Osaka Univ, Grad Sch Engn Sci, Osaka, Japan

[5] Ritsumeikan Univ, Coll Sci & Engn, Kyoto, Japan

[6] Nihon Univ, Coll Sci & Technol, Tokyo, Japan

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2017年 / 220卷

关键词：

Hard X-ray photoelectron spectroscopy; Manganese oxide; Layered oxypnictide; PHOTOEMISSION SPECTRA;

D O I：

10.1016/j.elspec.2017.01.006

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Layered oxypnictide LaOMnAs shows an antiferromagnetic insulator-to-ferromagnetic metal transition at room temperature with increasing the defect of LaO layer which induces hole doping into the MnAs layers. In order to reveal the details of the transition, we have performed hard-X-ray photoelectron spectroscopy for the insulating LaOMnAs and metallic (LaO)(0.7)MnAs. The spectral changes in the valence band, mainly composed of Mn 3d states, Mn 2p core levels, and La 3d core-levels have been observed across the transition. Our results indicated that Mn 3d state was significantly influenced by the defect of LaO layer. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：58 / 60

页数：3

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