Zobrazeno 1 - 10
of 36
pro vyhledávání: '"A.I. Barabash"'
Publikováno v:
Journal of Molecular Structure. 708:113-116
The 127 I NQR, IR absorption and Raman spectra of impurity-doped and mixed lithium iodate Li 1− x H x IO 3 crystals grown from water solutions with different LiIO 3 /HIO 3 ratios were investigated depending on the content of the impurity hydrogen x
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::751f76b1df8ab7f74d1c4f17eaf09144
https://doi.org/10.1016/j.molstruc.2004.03.005
https://doi.org/10.1016/j.molstruc.2004.03.005
Autor:
E.A. Shadchin, A.I. Barabash
Publikováno v:
Journal of Molecular Structure. 613:55-59
The geometric isotopic effect in hydrogen-containing crystals of the KDP-type is investigated. The mechanism of changes in the hydrogen bond lengths under deuteron substitution is supposed. It is shown that (in the framework of a three-dimensional mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c00be3d8935e720120b5000f0c1eb002
https://doi.org/10.1016/s0022-2860(02)00068-6
https://doi.org/10.1016/s0022-2860(02)00068-6
Autor:
A.I. Barabash, E.A. Shadchin
Publikováno v:
Journal of Molecular Structure. 524:283-288
The theoretical aspects of the structural order–disorder phase transitions in systems with four-minimum potential were considered. A theoretical model of the phase transition is proposed summarizing the well-known Ising model. The proposed theory p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73038003ace5f3b95aff9aa687b13baf
https://doi.org/10.1016/s0022-2860(00)00404-x
https://doi.org/10.1016/s0022-2860(00)00404-x
Publikováno v:
Journal of Molecular Structure. :145-152
The ferroelectric crystal of ammonium iodate NH4IO3 was investigated by the methods of Raman and IR spectroscopy. Powder IR and Raman temperature dependent spectra of the title crystal were measured in the temperature range 300–400 K near the Curie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6b10a846fb0107aa1a55755cdce36e9
https://doi.org/10.1016/s0022-2860(99)00153-2
https://doi.org/10.1016/s0022-2860(99)00153-2
Autor:
A.I. Barabash
Publikováno v:
Journal of Molecular Structure. 508:81-85
The study of temperature dependency of the electric field gradient (EFG) tensor asymmetry parameter η(T) from 127I nuclear quadrupole spectra (NQR) for NH4IO3 crystals in the temperature range of 100–400 K including the phase transition temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4acfbec84526a61f8b2f9d3aa2c8ad1
https://doi.org/10.1016/s0022-2860(99)00006-x
https://doi.org/10.1016/s0022-2860(99)00006-x
Autor:
A.I. Barabash
Publikováno v:
Journal of Molecular Structure. 450:23-28
The influence of geometric isotopic effects on the Curie temperature of hydrogen-containing crystals was considered. The experimental pressure and concentration dependencies of the Curie temperature have been explained in a framework of the pseudo-sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81515a91aa4078fbce8a7583c512751a
https://doi.org/10.1016/s0022-2860(98)00409-8
https://doi.org/10.1016/s0022-2860(98)00409-8
Publikováno v:
Journal of Molecular Structure. :301-307
We propose a new approach to the band shape formation in crystals with strong symmetric hydrogen bonds. Our consideration is based on the assumption that the interaction between the incident light applied to the crystal and polarized optical photons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87ce0e94dc692e46d42424395a5170ee
https://doi.org/10.1016/s0022-2860(97)00114-2
https://doi.org/10.1016/s0022-2860(97)00114-2
Publikováno v:
Journal of Molecular Structure. 404:187-191
FT-IR (4000-400 cm −1 ) and FIR (400-10 cm −1 ) spectra of α-modification of acid potassium iodate (α-KIO 3 ·HIO 3 ) were measured in the paraelectric (at 300-220 K) and ferroelectric (at 223-20 K) phases. FIR spectra of the ferroelectric phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d308059c047f6c866757623556cd25
https://doi.org/10.1016/s0022-2860(96)09380-5
https://doi.org/10.1016/s0022-2860(96)09380-5
Autor:
A.I. Barabash, E.A. Shadchin
Publikováno v:
Journal of Molecular Structure. 325:65-70
An investigation of the one-dimensional model for the hydrogen bond was made using the double adiabatic approximation. The dependence of the frequency of proton and deuteron stretching vibrations on the distances between equilibrium states of the oxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6328f19a41d9efab22eb3f8f39de446c
https://doi.org/10.1016/0022-2860(94)80019-7
https://doi.org/10.1016/0022-2860(94)80019-7
Autor:
A.I. Barabash, E.A. Shadchin
Publikováno v:
Journal of Molecular Structure. 325:59-64
The mutual effect of protons (deutrons) and heavy ions is examined within the limits of adiabatic approximation. The dependence of the length of the hydrogen bond on the proton state function is obtained. It is shown that the mutual effect of the pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80f157315d241d2d90c1de467b816c76
https://doi.org/10.1016/0022-2860(94)80018-9
https://doi.org/10.1016/0022-2860(94)80018-9