Electronic Structure of KH2PO4Single Crystal Studied by Soft-X-Ray Spectroscopy

Autor:	Poul Olade Velasco, Jeng Long Chen, Tetsuya Nishina, Eisuke Magome, Jinghua Guo, Tohru Higuchi, Masaru Komukae, Wang Li Yang, Masanori Fukunaga
Rok vydání:	2011
Předmět:	Phase transition X-ray absorption spectroscopy Materials science Absorption spectroscopy Emission spectrum Electronic structure Atomic physics Soft X-ray emission spectroscopy Condensed Matter Physics Spectroscopy Single crystal Molecular physics Electronic Optical and Magnetic Materials
Zdroj:	Ferroelectrics. 416:90-94
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150193.2011.577712
Popis:	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 TC . 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7bf60cb6212ef46ef70de57859cd4a5e https://doi.org/10.1080/00150193.2011.577712 Zobrazit plný text záznamu