Electronic Structure of KH2PO4 Single Crystal Studied by Soft-X-Ray Spectroscopy

被引：0

作者：

Nishina, Tetsuya ^{[1
]}

Higuchi, Tohru ^{[1
]}

Magome, Eisuke ^{[1
]}

Velasco, Poul Olade ^{[2
]}

Chen, Jeng Long ^{[2
]}

Yang, Wang Li ^{[2
]}

Guo, Jinghua ^{[2
]}

Fukunaga, Masanori ^{[1
]}

Komukae, Masaru ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Appl Phys, Tokyo 1628601, Japan

[2] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

FERROELECTRICS | 2011年 / 416卷

关键词：

D O I：

10.1080/00150193.2011.577712

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The problem of resolving molecular components of the electronic structure of KH2PO4 single crystal with respect to its chemical and orbital character has been approached by X-ray absorption spectroscopy (XAS) and soft X-ray emission spectroscopy (SXES). XAS around K-absorption edge of O atom was carried out in order to the existence of relation between the electronic structure and ferroelectric phase transition. Temperature dependence of electronic structure was measured below and above T-C. Obvious differences of electronic structure at phase transition temperature were clearly observed. Density states of electronic structure might be gradually changed due to local distortion of PO4 tetrahedra.

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页码：90 / 94

页数：5

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