Temperature Dependence of Thermal Motion and Position of Hydrogen in Paraelectric KH2ASO4 Studied by Neutron Diffraction Structure Analysis

Masaaki Matsuda, Nobuo Niimura, Shoichi Kawano, Akira Nonaka, Noboru Yamada

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The temperature dependence of the mean-square thermal tensor of KH2AsO4 in the paraelectric phase has been investigated by neutron diffraction structure analysis. All the tensor elements except u22(H) are extrapolated to zero and u22(H) gives a positive intercept at 0K. The temperature dependence of the H-site separation, δ, was obtained and was compared with that of KH2PO4. The result is well described by the order-disorder behavior of hydrogen.

Original languageEnglish
Pages (from-to)3824-3827
Number of pages4
JournalJournal of the Physical Society of Japan
Volume57
Issue number11
DOIs
StatePublished - 1988
Externally publishedYes

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