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Hydrogen Atom of KH_2AsO_4 Determined by Neutron Diffraction Study

Journal of the Physical Society of Japan Volume 80 Issue 7 Page 074607-
published_at 2011-07
2011010008.pdf
[fulltext] 302 KB
Title
Hydrogen Atom of KH_2AsO_4 Determined by Neutron Diffraction Study
Creators Miyoshi Tatsuki
Creators Akimoto Tomoshi
Creators Mashiyama Hiroyuki
Creator Keywords
KDP family hydrogen bonding ferroelectrics disordered proton neutron diffraction structure analysis
The crystal structure of KH_2AsO_4 (KDA) is refined at room temperature by neutron single-crystal structural analysis. The distance ROO between two oxygen atoms bonded by a hydrogen atom is slightly longer than that in KH_2PO_4 (KDP). A double-peak distribution of H with the splitting distance δ is visualized directly in the nuclear density map obtained by the maximum entropy method. The parameter δ of KDA is also larger than that of KDP, though the transition temperature of KDA is lower than that of KDP.
Languages eng
Resource Type journal article
Publishers The Physical Society of Japan
Date Issued 2011-07
Rights
(c)The Physical Society of Japan()
File Version Author’s Original
Access Rights open access
Relations
[ISSN]0031-9015
[NCID]AA00704814
info:doi/10.1143/JPSJ.80.074607
[isVersionOf] [URI]http://jpsj.ipap.jp/link?JPSJ/80/074607/
[isVersionOf] Publisher's Note [URI]http://jpsj.ipap.jp/link?JPSJ/80/108001/
[isVersionOf] [URI]http://jpsj.ipap.jp/
Schools 大学院理工学研究科(理学)