Ultrasonic attenuation easurements and “glassy” behaviour of neutron irradiated quartz
- 1 September 1986
- journal article
- section 1---oxides
- Published by Taylor & Francis in Radiation Effects
- Vol. 97 (3-4), 175-182
- https://doi.org/10.1080/00337578608226005
Abstract
The ultrasonic attenuation of longitudinal acoustic waves in slightly disordered crystalline quartz has been measured over a temperature range from 1.3 to 300 K, using the pulse-echo technique. Neutron irradiation is demonstrated to increase the ultrasonic attenuation at low temperatures indicating the presence of two-level tunneling systems similar to those of glasses. Our low-temperature acoustic results agree with a frequency independence and a T 3 behaviour for the relaxation process predicted by the two-level tunneling TLS-model where the regime ωT 1 ≫ 1 holds.Keywords
This publication has 23 references indexed in Scilit:
- Low-temperature specific heat and thermal conductivity of neutron-irradiated crystalline quartzPhysical Review B, 1981
- Amorphous SolidsPublished by Springer Nature ,1981
- Echo Phenomena in Disordered SolidsPublished by Springer Nature ,1980
- Saturation of the 9.4-GHz Hypersonic Attenuation in Fast-Neutron-Irradiated Crystalline QuartzPhysical Review Letters, 1979
- Neutron irradiation effects and structure of noncrystalline SiO2The Journal of Chemical Physics, 1974
- Tunneling states in amorphous solidsJournal of Low Temperature Physics, 1972
- Anomalous low-temperature thermal properties of glasses and spin glassesPhilosophical Magazine, 1972
- Mechanism of the Transformation of Crystalline Quartz into Amorphous Silica by Neutron IrradiationPublished by Springer Nature ,1967
- Probabilité d'ionisation par transfert d'énergie d'atomes excités à des moléculesJournal de Physique et le Radium, 1960
- Fast-Neutron-Induced Changes in Quartz and Vitreous SilicaPhysical Review B, 1958