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Article
On the formation of a macroscopically flat phospholipid membrane on a hydrosol substrate
The dependence of the structure of a phospholipid layer (DSPC and SOPC) adsorbed on a hydrosol substrate on the concentration of NaOH in a solution of 5-nm silica particles has been studied by X-ray reflectrom...
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Article
Nonlinear absorption of radio waves in a noncollinear antiferromagnet
The nonlinear absorption of radio waves (200–800 MHz) in a noncollinear cubic antiferromagnet Mn3Al2Ge3O12 in an external magnetic field H ‖ [001] has been studied in the temperature range of 1.2–4.2 K. We attrib...
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Article
Nuclear magnetic resonance in noncollinear antiferromagnet Mn3Al2Ge3O12
The 55Mn nuclear magnetic resonance spectrum of noncollinear 12-sublattice antiferromagnet Mn3Al2Ge3O12 has been studied in the frequency range of 200–640 MHz in the external magnetic field H ‖ [001] at T = 1.2 K...
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Article
Condensation of silica nanoparticles on a phospholipid membrane
The structure of the transient layer at the interface between air and the aqueous solution of silica nanoparticles with the size distribution of particles that has been determined from small-angle scattering h...
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Article
A Wideband spectrometer for NMR studies
The design of a wideband decimeter-wave (200–900 MHz) spectrometer with a magnetic induction of up to ∼10 T is described. This spectrometer is intended for studying electronic-nuclear oscillations in antiferro...
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Article
Multilayer of phospholipid membranes on a hydrosol substrate
The molecular structure of a multilayer of 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) adsorbed on the surface of the hydrosol of silica nanoparticles has been studied by the synchrotron radiation scatte...
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Article
The critical crossover at the n-hexane-water interface
According to estimates of the parameters of the critical crossover in monolayers of long-chain alcohol molecules adsorbed at the n-hexane-water interface, all systems in which this phenomenon is observed are char...
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Article
Nuclear magnetic resonance of 55Mn in the antiferromagnet CsMnBr3 in a variable longitudinal magnetic field
The spectrum and intensities of NMR lines are investigated experimentally and theoretically for excitation by an alternating magnetic field h‖ parallel to a static field H in the quasi-one-dimensional, six-sublat...
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Article
On the NMR spectrum in antiferromagnetic CsMnI3
An explanation is proposed for the spin-reduction anisotropy observed in an investigation of NMR in the noncollinear six-sublattice antiferromagnet CsMnI3.
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Article
On a new type of sublattice tip** in noncollinear antiferromagnets
An explanation is offered for the 30° tip** of sublattices which has been observed in the noncollinear antiferromagnet CsMnI3. In contrast to the ordinary 90° spin flop, this phase transition is due to nonlinea...
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Article
New phase transition in an easy-axis “triangular” antiferromagnet
The NMR of 55Mn in the quasi-one-dimensional noncollinear anti-ferromagnet CsMnI3 is investigated at T=1.3 K in magnetic fields up to ∼80 kOe and angles between the field and C 6 axis ϕ≈ 0.5° and ϕ=7°. A new reor...
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Article
Observation of spin-reduction anisotropy in the quasi-one-dimensional antiferromagnet CsMnI3
The NMR of 55Mn in the quasi-one-dimensional noncollinear antiferromagnet CsMnI3 at T=1.3 K is investigated in magnetic fields up to ∼40 kOe. Six NMR branches corresponding to six manganese spins per magnetic uni...
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Article
Erratum: NMR in 55Mn2+ nuclei in the quasi-one-dimensional antiferromagnetic CsMnBr3 [JETP 86, 197–205 (January 1998)]
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Article
NMR in 55Mn2+ nuclei in the quasi-one-dimensional antiferromagnetic CsMnBr3
The NMR spectrum of the quasi-one-dimensional easy-plane antiferromagnetic CsMnBr3, which has trigonal spin lattice, is investigated in detail. The measurements were performed on a wide-band NMR decimeter microwa...
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Article
Mn55 NMR investigation of the suppression of quantum fluctuations in quasi-one-dimensional antiferromagnets by a magnetic field
The NMR of Mn55 nuclei is measured in the quasi-one-dimensional antiferromagnets CsMnBr3, RbMnBr3, and CsMnI3 in magnetic fields upto 8 T attemperatures in the range 1.3–4.2 K. The average moments of the magnetic...
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Article
Investigation of NMR in the quasi-one-dimensional antiferromagnetic CsMnBr3
The NMR spectrum of the quasi-one-dimensional easy-plane antiferromagnet CsMnBr3 with a triangular magnetic structure has been studied. The measurements were performed in the decimeter microwave range in a specia...
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Article
Investigation of the characteristics of heat-transmitting elements with short finned ribs
Results are presented of an experimental investigation of the heat exchange and hydraulic resistance of heat-transmitting elements with short finned ribs. The influence of the relative fin length and their mut...
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Article
Effect of nonuniform discharge on the efficiency of heat exchangers
A criterion of nonuniformity is proposed for the analysis of heat exchangers in which one of the heat carriers is nonuniformly distributed. Generalized quantitative relations are derived which make it possible...
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Article
Heat transfer in Z-shaped heat exchangers
The characteristics of heat transfer in Z-shaped heat exchangers are considered. The parameters determining the thermal efficiency of such heat exchangers are described, and generalized relationships for pract...
