Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1295821 | Solid State Ionics | 2005 | 4 Pages |
Abstract
Measurements of 1H-NMR and 77Se-NMR have been conducted with CsHSeO4, in order to clarify dynamics of proton and SeO4 tetrahedron which is related to transport of proton below and above Tc = 401 K. An NMR absorption line is observed in 1H-NMR measurement and its line width decreases with increasing temperature below Tc, due to the motional narrowing. These results indicate that the mobile proton exists even below Tc. A correlation time τ is estimated from the line width for the mobile proton to be about 10− 4–10− 6 s below Tc. Furthermore it is deduced from 77Se-NMR measurements that the reorientational motion of SeO4 tetrahedron is related to the transport of proton below Tc.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yukihiko Yoshida, Yasumitsu Matsuo, Seiichiro Ikehata,