Acoustic phonon absorption and dispersion in hydroxyl-doped KCl crystals at low temperatures
- 1 January 1983
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 44 (11) , 433-441
- https://doi.org/10.1051/jphyslet:019830044011043300
Abstract
The acoustic properties of hydroxyl-doped KCl crystals have been measured by Brillouin scattering in the temperature range 1 to 50 K. For samples with OH- content higher than 200 ppm, two features dominate the temperature dependence of the attenuation, namely an absorption peak around 20 K and a strong increase of the damping with decreasing temperature below 5 K. The results bear some similarities to the behaviour observed in glasses and have been accounted for by assuming relaxational and resonant phonon absorption processesKeywords
This publication has 16 references indexed in Scilit:
- Dynamics of the dielectric absorption in the disordered solid RbCl:OH at low temperaturesPhysical Review B, 1981
- Low temperature specific heat of KCl: OH with high OH concentrationSolid State Communications, 1981
- A fully stabilized Brillouin spectrometer with high contrast and high resolutionReview of Scientific Instruments, 1980
- Low-Temperature Specific Heat and Thermal Conductivity of Noncrystalline Dielectric SolidsPhysical Review B, 1973
- Anomalous low-temperature thermal properties of glasses and spin glassesPhilosophical Magazine, 1972
- Electric Dipole Interactions Among Polar Defects in Alkali HalidesPhysical Review B, 1971
- Thermal Conductivity of Alkali Halide Crystals Containing the Hydroxide IonPhysical Review B, 1969
- Low-Temperature Specific Heat of KCl:OHPhysical Review B, 1969
- Anelastic Relaxation of Water and Hydroxyl Ions in Alkali HalidesThe Journal of the Acoustical Society of America, 1967
- Ultrasonic Absorption in Fused Silica at Low Temperatures and High FrequenciesJournal of the American Ceramic Society, 1955