Concentration and temperature studies of spontaneous Mandelstam-Brillouin scattering of light in aqueous solutions of γ-picoline showed the manifestation of negative dispersion of hypersound velocity at concentrations С ≤ 0.2 mole fractions of γ-picoline. The temperature and concentration dependences of the negative dispersion are associated with the process of solution structurization, which reaches its optimum value at a concentration of C = 0.06 mole fractions of γ-picoline.
| Mualliflar | Sabirov, Leonard, Qarshibayev, Sh.E., Khasanov, M.A., Kadirov, Sh.A. |
|---|---|
| Jurnal | O‘zbekiston fizika jurnali |
| Nashr sanasi | 2022-12-17 |
| Jild | 24 |
| Son | 4 |
| Betlar | 305-309 |
| Til | Ingliz |
| DOI | 10.52304/.v24i4.387 |
DOI: 10.52304/.v24i4.387 · Maqolaning asl sahifasi
водно-органический раствор, время релаксации, гиперзвук, релаксация объемной вязкости, дисперсия, пиколин, waterorganic solution, relaxation time, hypersound, relaxation of bulk viscosity, γ-picoline dispersion
In this work, equilibrium geometry, bond energy, harmonic and anharmonic spectral parameters of the monomers of CH3CHO, HF molecules and CH3CHO···HF, CH3COH···FH complexes were calculated using the set of bases…
In this work, study of photovoltaic parameters of a perovskite (CsPbI3) film prepared by adding hydroiodic acid (HI acid) to perovskite solution, as well as changes in the properties of integrated structures of…
In this work, the effect of annealing temperature on the photoluminescence properties of zinc oxide nanostructures synthesized in aqueous solutions at low temperatures was investigated. When the ZnO nanocrystals…
The anisotropy of the attenuation of acoustic waves by the Akhiezer mechanism in cubic crystals of lithium fluoride is studied. The components of the Grüneisen tensor are determined, with the help of which the…
In this paper, we consider the analysis of the dependence of the diffusion capacitance on the voltage of a tunnel diode based on germanium Ge, according to the Tsu-Esaki model and the theory of Knott and de Mass. It has…
Исследованы нелинейно-оптические характеристики Cr4+:YAG кристалла методикой Zсканирования по схеме с открытой апертурой. В качестве пробного источника использовано излучение непрерывного лазера на длине волны 1030 нм…
High-resolution infrared absorption spectra of the H2CO···HF complex and its monomers are recorded in gas phase in C=O and C−H regions by means of Bruker HR 125 spectrometer recorded with a resolution of 0.05 cm−1. Upon…
The surface morphology and optical properties of zinc oxide microstructures have been studied by scanning electron microscopy, photoluminescence and Raman spectroscopy. Microcrystals with transverse dimensions of 2–8 µm…
Изучена анизотропия упругих и фотоупругих свойств кристаллов молибдата кальцияпри брэгговской дифракции света на продольных акустических волнах, распространяющихся в плоскости (001). Показано, что эффективность…
The composition and emission properties of W coated with a monolayer of Ba and implanted with Ba+ ions and alkali metal ions Na+, K+, Cs+ with an energy of 0.5−8 keV at a saturation dose of D=Dsat=(6–8)×1016 sm–2 were…