J. Phys. IV France
Volume 12, Numéro 9, November 2002
Page(s) 83 - 84

J. Phys. IV France
12 (2002) Pr9-83
DOI: 10.1051/jp4:20020362

Photoinduced dynamic effects in the sliding conduction of K 0.3MoO 3

N. Ogawa and K. Miyano

Department of Materials and Devices, Photonic Materials, Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan

The effects of photoexcitation on the dynamics of the CDW in K 0.3MoO 3 are demonstrated. A light illumination causes a relaxation of the CDW phase strain, which can be utilized to instantly prepare the stress-relieved phase configuration as a well-defined initial condition for each measurement. This was clearly observed in the optical modification of the time evolution of sliding threshold voltage and in the amount of conduction delay time after the step voltage application.

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