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Article
Application potential of paratellurite and iodic acid crystals for acousto-optics in the Terahertz range
The possibility of applying paratellurite, iodic acid, and lithium iodate crystals in acousto-optics in the THz range has been investigated. The transparency windows of these crystals and their refractive indi...
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Article
Kinetics of water vapor diffusion in activated carbon
We describe an experimental method for studying rapid processes of water vapor sorption by fine-dispersed and porous materials. The concentration of gas-phase water molecules is detected during adsorption by a...
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Article
Kinetics of water molecule adsorption on the porous silicon surface
The kinetics of water vapor adsorption on the porous silicon surface is studied by the gas relaxometry method. The process multistep** which is reflected in sequential changes in H2O molecule diffusivities into...
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Article
Anomalous diffusion of water molecules in disperse mineral media
Gas adsorption relaxometry was used to study the effect of high-voltage nanosecond impulses on the structural condition of surfaces and the adsorption properties of sulfide minerals. It was established that th...
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Article
On the room temperature multiferroic BiFeO3: magnetic, dielectric and thermal properties
Magnetic dc susceptibility between 1.5 and 800 K, ac susceptibility and magnetization, thermodynamic properties, temperature dependence of radio and audio-wave dielectric constants and conductivity, contact-f...
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Article
Phase transitions and spin excitations in new multiferroics with modulated magnetic structure
Coexistence of an antiferromagnetic (modulated) structure and electric polarization has been revealed in single crystals of Eu1 − x YxMnO3 (0.2 ≤ x ≤ 0.5) and Gd1 − x YxMnO3 (0 ≤ x
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Article
Possible evidence for electromagnons in multiferroic manganites
Magnetodielectric materials are characterized by a strong coupling of the magnetic and dielectric properties and, in rare cases, simultaneously show both magnetic and polar order. Among other multiferroics, TbMnO
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Article
Magnetic and structural transitions in La1−x Sr x MnO3: T-x phase diagram
The electrical conductivity, magnetic susceptibility, magnetization, and submillimeter (v=5∓20 cm−1) permittivity and dynamic conductivity of La1−x Sr x MnO3 (0≤x≤ 0.45) single c...
