Tests of the two-state-system model in cold amorphous conductors
- 15 October 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (11) , 8049-8052
- https://doi.org/10.1103/physrevb.40.8049
Abstract
The dynamics of atomic motions in the amorphous conductors Si-Au and C-Cu were probed using conductance fluctuations in mesoscopic samples in the temperature range 4–300 K. Near 4 K the number of mobile sites was close to that expected from the anomalous heat capacity of amorphous materials.. Although some sites showed two-state-switching kinetics, a variety of statistical indicators all indicated that intersite interactions were important.Keywords
This publication has 9 references indexed in Scilit:
- Universal-Conductance-FluctuationNoise in a Metal-Insulator CompositePhysical Review Letters, 1988
- Defect Interactions and Noise in Metallic NanoconstrictionsPhysical Review Letters, 1988
- noise and other slow, nonexponential kinetics in condensed matterReviews of Modern Physics, 1988
- Two-level states in glassesReports on Progress in Physics, 1987
- Feng, Lee, and Stone respondPhysical Review Letters, 1987
- Sensitivity of the Conductance of a Disordered Metal to the Motion of a Single Atom: Implications forNoisePhysical Review Letters, 1986
- Nature of Single-Localized-Electron States Derived from Tunneling MeasurementsPhysical Review Letters, 1985
- Non-Gaussian effects in 1/fnoise in small silicon-on-sapphire resistorsPhysical Review B, 1985
- Strain interactions and the low-temperature properties of glassesPhysical Review B, 1978