Zobrazeno 1 - 10
of 29
pro vyhledávání: '"I. G. Kuleev"'
Autor:
I. G. Kuleev, I. I. Kuleev
Publikováno v:
Physics of Metals and Metallography. 121:921-928
The effect of anisotropy of elastic energy on the electron–phonon drag and thermoelectric phenomena in potassium crystals at low temperatures is investigated in this work. The standard theory of deformation potential is used for longitudinal compon
Autor:
I. I. Kuleev, I. G. Kuleev
Publikováno v:
Physics of Metals and Metallography. 120:1033-1039
The effect of anisotropy of elastic energy on electron–phonon drag and thermoelectric phenomena in potassium crystals is studied. The temperature dependences of the thermal conductivity, thermal emf, and contributions to them from phonons of differ
Publikováno v:
Physics of Metals and Metallography. 118:10-20
Effect of anisotropy of elastic energy on the phonon propagation in single-crystal nanowires made of Fe, Cu, MgO, InSb, and GaAs materials that are used to fabricate spintronics devices in the regime of the Knudsen flow of phonon gas has been studied
Publikováno v:
Physics of the Solid State. 50:502-506
The dependences of the relaxation rate and the absorption coefficient of ultrasound in GaAs crystals on the direction of the wave vector of quasi-transverse phonons for the Landau-Rumer mechanism are analyzed in the framework of the anisotropic-conti
Autor:
I. G. Kuleev, I. I. Kuleev
Publikováno v:
Physics of the Solid State. 49:1643-1651
The attenuation of transverse ultrasound in germanium, silicon, and diamond crystals is considered with allowance for competing isotopic and anharmonic scattering processes. The dependence of the attenuation of transverse ultrasound on the direction
Publikováno v:
Physics of the Solid State. 49:1335-1344
Relaxation of long-wavelength quasi-transverse modes due to anharmonic scattering processes is considered. An anisotropic continuum model is used to analyze the dependence of the relaxation in cubic crystals on the direction of the wave vector of qua
Autor:
I. G. Kuleev, I. I. Kuleev
Publikováno v:
Physics of the Solid State. 49:437-444
Elastic waves in cubic crystals are considered. A new classification of cubic crystals is proposed based on their elastic properties. All cubic crystals are shown to be divided into crystals with a positive or negative anisotropy of their second-orde
Publikováno v:
Journal of Experimental and Theoretical Physics. 101:322-330
The effect of isotopic disorder on ultrasound absorption in germanium, silicon, and diamond crystals is considered. The “giant” isotope effect is predicted in the ultrasound absorption coefficient (in contrast to the isotope effect in the thermal
Autor:
I. I. Kuleev, I. G. Kuleev
Publikováno v:
Journal of Experimental and Theoretical Physics. 99:109-120
Transverse phonon relaxation according to the Landau-Rumer mechanism is considered for an isotropic medium and crystals of germanium, silicon, and diamond possessing a cubic symmetry. The energy of elastic deformation caused by the anharmonicity of v
Publikováno v:
Physics of the Solid State. 45:1874-1883
The resistivity and the Hall coefficient of HgSe: Fe crystals with various iron content are experimentally studied in the temperature range 1.3≤T≤300 K and in magnetic fields up to 60 kOe. The temperature dependences of the density and mobility o