- Tytuł:
- EPR Study of VO$\text{}^{2+}$ Center in Fast Proton Conductor K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$
- Autorzy:
-
Ostrowski, A.
Waplak, S.
Bednarski, W. - Powiązania:
- https://bibliotekanauki.pl/articles/2043409.pdf
- Data publikacji:
- 2005-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.50.-f
76.30.-v - Opis:
- The pretransitional phenomena of superprotonic phase transition (T$\text{}_{sp}$=471 K) were studied in detail by X-band continuous wave EPR spectra of K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ crystal doped with VO$\text{}^{2+}$ ions. Three kinds of VO$\text{}^{2+}$ complexes (magnetically equivalent but structurally non-equivalent) denoted as VO$\text{}^{2+}$(I), VO$\text{}^{2+}$(II), and VO$\text{}^{2+}$(III) were found. "Smearing out" of the superhyperfine structure was observed as a result of interbond proton motion. VO$\text{}^{2+}$ impurity replaces K$\text{}^{+}$ ion and experiences the same average crystal field gradient at T$\text{}_{sp}$=471 K for I- and II-type complexes. The increase in interbond proton frequency hopping above 360 K is a reason of significant line broadening.
- Źródło:
-
Acta Physica Polonica A; 2005, 108, 1; 127-135
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł