We have measured the dependence of the CDW elastic depinning anomalies on frequency and uniaxial strain. The anomalies in shear and Young's moduli are approximately independent of frequency between 30Hz and 1kHz, falling rapidly above this. The shear modulus anomaly decreases rapidly when the strain exceeds ∼0.5%, where a second threshold electric field is observed.
|Number of pages||6|
|State||Published - Jun 14 1991|
Bibliographical noteFunding Information:
ACKNOWLEDGEMENTS We appreciate the helpful comments and suggestions of G. Gruner, G. Mozurkewich, M. Skove, T. Tritt, X.-D. Xiang, and A. Zettl. This research was supported in part by the U.S. National Science Foundation, Awards #DMR-86-15463 and #DMR-89-15440.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry