Subject of inquiry:La_2_-_xSr_xCuO_4 polycrystals and La_2CuO_4(Li_x) monocrystals. The aim of the work is to carry out experimental examination of mechanisms of interaction between acoustic waves and lattice vibrations of metaloxide compounds. New experimental results have been obtained concerning elactic properties within a wide range of temperatures and frequences. New potentialities have been determined for examination of phonon spectrum of crystals with the perovskite-type structure. Methods have been developed for determination of characteristics and properties of unstiffened phonon optical modes interacting with acoustic wavesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio
The system La_2CuO_4 was treated with total energy calculations based on the density functional theo...
The FT-IR/FT-FIR spectra of powders of Nd2-xCexCuO4 and La2-xSrxCuO4 solid solutions and of RBa(2)Cu...
The work covers the investigation of ultrasonic light diffraction characteristics in gyrotroric crys...
The investigations of the fundamental problems on the influence of the external actions (pressure, e...
The investigation is concerned with ferroelectrics of oxygen-octahedron type with a diffuse phase tr...
Department of Energy EPSCoR The University of Mississippi Award: DE-FG02-04ER46121 Resonant Ultrasou...
Crystals of KCl_x Br_1_-_x, PbMoO_4, PbMoO_4: Na; Li_2Ge_7O_1_5, Li_2Ge_7O_1_5: Na; Ba_2Cu_3O_x; LiN...
Infrared reflectivity spectra of a La2CuO4+x single crystal have been studied over a spectral range ...
The investigation is concerned with C331 DSeO341, Rb331H(SeO341)321 proton conductivity. The aim to ...
Reflectance studies on single crystals of a series of rare-earth (R=Pr, Nd, Sm, Gd) copper oxides ha...
Resonant ultrasound spectroscopy is used to measure the temperature dependence of all six elastic mo...
Ultrasonic is a good tool to investigate the elastic properties of crystals. It enables one to deter...
The object of investigation: the photoconducting crystals of the cadmium sulphide. The purpose of th...
The field of low-dimensional structures has been experiencing rapid development in both theoretical ...
An improved method for light scattering from acoustic phonons in small, low- symmetry solids is desc...
The system La_2CuO_4 was treated with total energy calculations based on the density functional theo...
The FT-IR/FT-FIR spectra of powders of Nd2-xCexCuO4 and La2-xSrxCuO4 solid solutions and of RBa(2)Cu...
The work covers the investigation of ultrasonic light diffraction characteristics in gyrotroric crys...
The investigations of the fundamental problems on the influence of the external actions (pressure, e...
The investigation is concerned with ferroelectrics of oxygen-octahedron type with a diffuse phase tr...
Department of Energy EPSCoR The University of Mississippi Award: DE-FG02-04ER46121 Resonant Ultrasou...
Crystals of KCl_x Br_1_-_x, PbMoO_4, PbMoO_4: Na; Li_2Ge_7O_1_5, Li_2Ge_7O_1_5: Na; Ba_2Cu_3O_x; LiN...
Infrared reflectivity spectra of a La2CuO4+x single crystal have been studied over a spectral range ...
The investigation is concerned with C331 DSeO341, Rb331H(SeO341)321 proton conductivity. The aim to ...
Reflectance studies on single crystals of a series of rare-earth (R=Pr, Nd, Sm, Gd) copper oxides ha...
Resonant ultrasound spectroscopy is used to measure the temperature dependence of all six elastic mo...
Ultrasonic is a good tool to investigate the elastic properties of crystals. It enables one to deter...
The object of investigation: the photoconducting crystals of the cadmium sulphide. The purpose of th...
The field of low-dimensional structures has been experiencing rapid development in both theoretical ...
An improved method for light scattering from acoustic phonons in small, low- symmetry solids is desc...
The system La_2CuO_4 was treated with total energy calculations based on the density functional theo...
The FT-IR/FT-FIR spectra of powders of Nd2-xCexCuO4 and La2-xSrxCuO4 solid solutions and of RBa(2)Cu...
The work covers the investigation of ultrasonic light diffraction characteristics in gyrotroric crys...