On dissociation in weakly doped ice
Currently, there is some ambiguity in the problem of decay of a single donor into charged fragments. Thus, in the well-known Ostwald approximation used for semiconductors (ice being one of them) the donor dissociation degree of tends to its maximum value (i.e., unity) as the doping impurity concen...
Збережено в:
| Дата: | 2015 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2015
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/127934 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | On dissociation in weakly doped ice / I. Chikina, V. Shikin // Физика низких температур. — 2015. — Т. 41, № 6. — С. 594-597. — Бібліогр.: 10 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Currently, there is some ambiguity in the problem of decay of a single donor into charged fragments. Thus, in
the well-known Ostwald approximation used for semiconductors (ice being one of them) the donor dissociation
degree of tends to its maximum value (i.e., unity) as the doping impurity concentration approaches zero. At the
same time, the statistical theory of atom reveals within the Thomas–Fermi (or Debye–Hückel) approximation the
existence of a thermodynamically equilibrium state of a single multi-electron atom (donor) where charged nucleus
keeps the number of counterions just necessary for its neutralization. These scenarios do not show the atom
dissociation at all. Discussed in the present paper is the alternative between the full dissociation of a single donor
(i.e., dissociation degree equals unity) in a semiconducting media (ice, water, semiconductor) and zero dissociation
degree. |
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