Measurement of the sliding charge-density-wave phase velocity in
- 16 November 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (20), 2348-2351
- https://doi.org/10.1103/physrevlett.59.2348
Abstract
To determine the phase velocity of the charge-density-wave (CDW) voltage noise and NMR spectra at an electric field of about 15 were measured together with I-V characteristics on a crystal between 40 and 60 K. NMR spectra are reproduced by means of a velocity distribution determined by the noise spectrum. A ratio of the average noise frequency to between 12.8 and 17.7 kHz/A⋅ and a ratio of the average local-field oscillation frequency to of 11±1 kHz/A⋅ are found, values close to 12.5 kHz/A⋅ from the electron density. NMR sidebands show that local-field oscillations are coherent.
Keywords
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