Coexistence of paraelectric/proton-glass and ferroelectric (antiferroelectric) orders in Rb₁₋x(NH₄)xH₂AsO₄ crystals
This paper reviews the results of dielectric studies of the proton glass state in a mixed crystal Rubidium Ammonium Dihydrogen Arsenate (RADA) The coexistence of paraelectric/proton glass and ferroelectric or antiferroelectric orders, confirmed by other studies, has been discussed in detail. The...
Збережено в:
| Дата: | 1998 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
1998
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118952 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Coexistence of paraelectric/proton-glass and ferroelectric (antiferroelectric) orders in Rb₁₋x(NH₄)xH₂AsO₄ crystals / Z. Trybuła, J. Stankowski // Condensed Matter Physics. — 1998. — Т. 1, № 2(14). — С. 311-330. — Бібліогр.: 52 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | This paper reviews the results of dielectric studies of the proton glass state
in a mixed crystal Rubidium Ammonium Dihydrogen Arsenate (RADA) The
coexistence of paraelectric/proton glass and ferroelectric or antiferroelectric
orders, confirmed by other studies, has been discussed in detail. The
phase diagram of RADA is asymmetric. The proton glass state exists for
ammonium concentration in the range of 0.1 < x < 0.5 . The phase diagram
of deuterated DRADA is presented. The proton glass state region in
DRADA, 0.2 < x < 0.35 is narrower than that for non-deuterated RADA.
The effects of hydrostatic pressure on the dielectric properties in the proton
glass state are presented. The glass temperature Tg decreases with
pressure and is expected to vanish at 5 kbar. Low temperature behaviour
is still an open question, since there is no experimental evidence of Tg(p)
dependence below 4K for proton glass systems. |
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