Quasielastic Light Scattering and Heat Transfer in Pb2P2S6 Crystals
Journal Title: Фізика і хімія твердого тіла - Year 2014, Vol 15, Issue 3
Abstract
By analyzing of the central peak on Brillouin light scattering spectra, quasielastic scattering light of Pb2P2S6 crystals was investigated. It was found the differences between empirical and calculated (in terms of thermodynamic theory) data for the half-width of the spectral lines at low temperatures, which is associated with a crossover from the hydrodynamic regime to the regime without collisions. For objects under consideration, the temperature dependence of the relaxation time, the average group velocity and the mean free path of short-phonons that carry heat were experimentally obtained.
Authors and Affiliations
R. M. Bilanych, A. A. Kohutych, S. I. Perechinskii
Keywords
Related Articles
- EP ID EP313934
- DOI -
- Views 69
- Downloads 0
Molecular Dynamics Modeling of Thermal Conductivity of Silicon/Germanium Nanowires
The thermal conductivity of silicon/germanium nanowires with different geometry and composition has beenstudied by using the nonequilibrium molecular dynamics method. The thermal conductivity of the Si1-xGexnanowire is s...
Structure, Energy State and Electrokinetic Characteristics of Zr1+xCo1-xSb Solid Solution
The features of the crystal and electronic structures, electrokinetic and energy state characteristics of Zr1+xCo1-xSb semiconductor solid solution in the temperature range T = 80 ÷ 400 K were investigated. The mechanism...
A Porous Carbon Material of Organic Raw Materials of Vegetable Nature as an Electrode Component for Electric Double-Layer Capacitors
In this paper we present investigations of nanoporous carbon materials from organic raw materials of vegetable nature appropriate to be used as an electrode component in supercapacitors with an aqueous electrolyte. For s...
Optical Studies of the Interactions CdS and CdTe Nanoparticles with a Human Serum Albumin
The interaction between CdS , CdTe nanoparticles and human serum albumin (HSA) was studied by absorption and photoluminescence spectroscopy. The performed transmission electron microscopy (TEM) analysis suggests of spher...
Crystal-Chemical Interpretation of Amphoteric Influence of Bismuth Impurity in Tin Telluride
Models of point defects of doped by bismuth tin telluride crystals considering amphoteric influence of dopant ( ) have been specified. The influence of disproportionation of charge state of impurity on the conductivity t...