J. Phys. IV France
Volume 131, December 2005
Page(s) 95 - 100
Publié en ligne 18 janvier 2006
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 95-100

DOI: 10.1051/jp4:2005131021

Photoconduction and photocontrolled collective phenomena in Peierls conductor TaS3

S.V. Zaitsev-Zotov and V.E. Minakova

Institute of Radioengineering and Electronics of RAS, 125009 Mokhovaya 11, Moscow, Russia

Effect of illumination on linear and nonlinear conduction of a quasi-one-dimensional conductor o-TaS3 is studied. Evidence for the quadratic recombination is found. We demonstrate that the low-temperature conduction of TaS3 is not provided by electrons and holes excited over the Peierls gap, whereas it is for photoconduction. Photoinduced change of the linear conduction results in appearance of long-living metastable states, substantial growth of the threshold field and increase of the low-temperature dielectric permittivity.

© EDP Sciences 2005