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Список видань за алфавітом назв: Авторський покажчик Покажчик назв публікацій  |
Пошуковий запит: (<.>A=Shikin V$<.>) | |||
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Загальна кількість знайдених документів : 8 Представлено документи з 1 до 8 |
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| 1. | 
Nazin S. Cryogenic electrolytes [Електронний ресурс] / S. Nazin, I. Chikina, V. Shikin // Физика низких температур. - 2013. - Т. 39, № 5. - С. 611-616. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2013_39_5_19 The emphasis is made on experimentally observed indications of the presence of metastable ion dipoles in solid helium. Similar quasiparticles possessing positive scattering length for injected electrons are assumed to exist in liquid phases of cryogenic liquids. The observed phenomena allowing to detect and monitor the behavior of dipole gas in superfluid helium (referred to as cryogenic electrolyte) are discussed. Most interesting among these phenomena are: special features of the dielectric behavior of ion dipole gas, details of the temperature dependence of the ion dipole gas osmotic pressure at the boundary of the liquid <^>3 | ||
| 2. |
Shikin V. Relaxation phenomena in cryogenic electrolytes [Електронний ресурс] / V. Shikin, I. Chikina, S. Nazin // Физика низких температур. - 2013. - Т. 39, № 6. - С. 712-715. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2013_39_6_13 Proposed is a scenario for development of observed relaxation phenomena in the cryogenic electrolyte with the structure of "liquid hydrogen + injected ions". Ions of one sign are generated in the bulk of liquid hydrogen in the presence of external field <$EE sub symbol <94>> by a stationary radioactive source of <$Esymbol С~roman ions> at the bottom of the vessel. After accumulation near the free surface of the liquid with a finite density <$En sub s> the ions can break its stability producing a pulse of ion current to the collector located above the liquid surface. The outlined process is periodically repeated. Its period contains information on the ion mobility and, which is most interesting, on dissociation (association) processes occurring in a system of charged particles placed in an external field. The cryogenic problem is a good model for dissociation in the presence of external field occurring in normal electrolytes without any external ion sources. | ||
| 3. |
Chikina I. Mechanisms of self-screening in pure ice [Електронний ресурс] / I. Chikina, V. Shikin // Физика низких температур. - 2015. - Т. 41, № 6. - С. 588-589. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2015_41_6_13 Possible approaches to a correct account of the Coulomb interaction in system of proton-hydroxyl pairs in pure ice (a proton version of intrinsic semiconductor) are discussed for a possibility to evaluate correlation properties of semiconducting media. | ||
| 4. |
Levchenko А. А. Shielding characteristics of water [Електронний ресурс] / А. А. Levchenko, А. М. Likhter, D. А. Khramov, V. А. Gryaznova, V. B. Shikin // Физика низких температур. - 2015. - Т. 41, № 6. - С. 590-593. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2015_41_6_14 In this article we demonstrate that a relatively small density of intrinsic ions in pure water has a significant impact on the development of the instability of the liquid-vapor boundary in an external electric field perpendicular to the interface. Dielectric breakdown scenario (Shliomis model) is shunted by alternative metal scenario (Frenkel model). Experimentally we observed the formation of a positively charged layer beneath the surface in weak perpendicular electrical fields. In strong electrical fields surface of water loses its stability and charges pass through the interface. Surface discharge process is periodic with a characteristic time of the order of tens seconds. | ||
| 5. |
Chikina I. On dissociation in weakly doped ice [Електронний ресурс] / I. Chikina, V. Shikin // Физика низких температур. - 2015. - Т. 41, № 6. - С. 594-597. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2015_41_6_15 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 - Huckel) 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. | ||
| 6. |
Chikina I. Dynamic phenomena for charged clusters in cryogenic liquids [Електронний ресурс] / I. Chikina, S. Nazin, V. Shikin // Физика низких температур. - 2011. - Т. 37, № 5. - С. 500-504. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2011_37_5_9 Discussed in the paper are resonance phenomena in electrolytes related to possible relative motion of the charged core and hydrate (solvate) shell of each cluster. The resonances are shown to contain important information on the internal structure of clusters. Special attention is paid to the process of formation of the cluster associated mass in the solvent. | ||
| 7. |
Nazin S. Transition conduction types of electrons in cryogenic media [Електронний ресурс] / S. Nazin, V. Shikin // Физика низких температур. - 2011. - Т. 37, № 5. - С. 505-508. - Режим доступу: http://nbuv.gov.ua/UJRN/PhNT_2011_37_5_10 Discussed in the paper are possibilities for description of electron conduction in transitional density range separating electron free and localized states in cryogenic media. | ||
| 8. |
Chikina I. Electrochemical impedance in ac diagnostics of weakly conducting media [Електронний ресурс] / I. Chikina, B. Timofeev, V. Shikin // Фізика низьких температур. - 2021. - Т. 47, Вип. 7. - С. 660-668. | ||
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