Unidirectional charge-density-wave sliding in two-dimensional rare-earth tritellurides

A.A. Sinchenko (1) , Pascal Lejay (2) , Olivier Leynaud (3) , Pierre Monceau (4)

1 IRE - Kotelnikov Institute of Radio Engineering and Electronics
2 NEEL - C2MA - Croissance Cristalline et MicroAnalyse
3 NEEL - X'Press - X'Press : diffraction et hautes pressions
4 NEEL - MagSup - Magnétisme et Supraconductivité

Nonlinear transport properties in the layered TbTe3 and GdTe3 rare-earth tritellurides with a charge- density-wave( CDW) transition above room temperature have been studied along different crystal- lographic orientations.The pronounced effect of collective CDW motion is observed along c-axis andi s absent completely in the perpendicular direction demonstrating the unidirectional character of the CDW.In contrast to one-dimensiona lCDWs the threshold electric field for CDW sliding is linearly temperature dependent in a wide range of temperature.

Domaines: Electrons fortement corrélés [cond-mat.str-el]

A.A. Sinchenko, Pascal Lejay, Olivier Leynaud, Pierre Monceau. Unidirectional charge-density-wave sliding in two-dimensional rare-earth tritellurides. Solid State Communications, 2014, 188, pp.67. ⟨10.1016/j.ssc.2014.03.005⟩. ⟨hal-00976345⟩