Intensity-dependent ultrasonic attenuation in a metallic glass at low temperatures
- 1 January 1978
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 39 (15), 265-269
- https://doi.org/10.1051/jphyslet:019780039015026500
Abstract
The attenuation of 720 MHz transverse acoustic waves has been studied in the metallic glass Pd0.775Si0.165Cu0.06 at low temperatures. At 0.062 K the attenuation is found to be intensity-dependent, a behaviour already observed in amorphous insulators and explained by the existence of a broad distribution of two-level systems. The temperature variation of the attenuation has been measured between 0.062 K and 1.5 K at low and high acoustic intensities. It is described by a resonant interaction with two-level systems plus a relaxation contribution of the form AωT + Bω2 log T/ T0Keywords
This publication has 15 references indexed in Scilit:
- Sound propagation in amorphous Co-PJournal of Physics C: Solid State Physics, 1977
- Low-temperature thermal conductivity of an amorphous palladium silicon alloyJournal of Non-Crystalline Solids, 1977
- Ultrasonic attenuation in the amorphous metals Nip and PdSi at low temperaturesJournal de Physique Lettres, 1977
- Intrinsic decay lengths of quasimonochromatic phonons in a glass below 1 KPhysical Review B, 1976
- Sound propagation in amorphous metallic Ni-PJournal de Physique Lettres, 1976
- Nonlinear ultrasonic attenuation in glassesJournal of Non-Crystalline Solids, 1974
- Nonlinear Phonon Propagation in Fused Silica below 1 KPhysical Review Letters, 1973
- On the ultrasonic attenuation in glasses at low temperaturesThe European Physical Journal A, 1972
- Anomalous low-temperature thermal properties of glasses and spin glassesPhilosophical Magazine, 1972
- Thermal Conductivity and Specific Heat of Noncrystalline SolidsPhysical Review B, 1971