S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 227-229
Effect of commensurability on the CDW deformation near a point contactA.A. Sinchenko1 and V.Ya. Pokrovskii2
1 Moscow Engineering-Physics Institute, 115409 Moscow, Russia
2 Institute of Radioengineering and Electronics, Russian Academy of Sciences, 125009 Moscow, Russia
The results of investigation of normal metal(Cu, Au)-CDW (K0.3MoO3) point-contacts (PCs) in a wide range of temperature are reported. At K the contact characteristics are adequately described by the semiconducting model of CDW. At T<70 K the I-V characteristics of PCs Cu-K0.3MoO3 demonstrate a strain-compress asymmetry of the CDW. The observed behavior is likely to reveal the lock-in transition (incommensurate-commensurate) due to the electric-field induced strain of the CDW.
© EDP Sciences 2005