Numéro
J. Phys. I France
Volume 2, Numéro 7, July 1992
Page(s) 1497 - 1505
DOI https://doi.org/10.1051/jp1:1992218
DOI: 10.1051/jp1:1992218
J. Phys. I France 2 (1992) 1497-1505

Non-linear dynamics of charge-density-wave in orthorombic TaS 3 at microwaves

I. B. Vendik, V. M. Pchelkin and A. V. Shchepak

Electrical Engineering Institute, 5, Prof. Popov street, St. Petersburg, 197376, Russia


(Received 30 January 1992, accepted in final form 9 March 1992)

Abstract
Non-linear dc and microwave conductivity due to collective transport of charge density-wave in TaS 3 was experimentally investigated at T=78-215 K. The non-linear dc field dependence of a differential conductivity ${\rm d}I/{\rm d}V$ exhibits a threshold field $E_{\rm T1}$ sharply defined in the temperature range of 140-215 K. As the temperature decreases beyond 140 K the field $E_{\rm T1}$ disappears, and the second threshold field $E_{\rm T2}\gg E_{\rm T1}$ originates. The two fields are temperature dependent and show decreasing under a microwave radiation. A non-linear response $V_{\Omega}$ to the microwave radiation was observed at T=78-215 K in a mixing experiment (detuned case, $\Omega=\omega_1-\omega_2\,\,/\!\!\!\!\!\!\equiv 0$). The dc field dependencies of the non-linear response $V_{\Omega}$ reveral no signs of the threshold field singularities. The experimental result have been satisfactorily described by a classical model of an overdamped oscillator by introducing an empirical distribution function for the threshold field and by averaging $V_{\Omega}$ over $E_{\rm T}$.



© Les Editions de Physique 1992

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.