Dynamical transport properties of NbSe3 with simultaneous sliding of both charge-density waves

A.A. Sinchenko (1) , Pierre Monceau (2)

1 Moscow Engineering-Physics Institute
2 NEEL - MagSup - Magnétisme et Supraconductivité

Measurements of the nonlinear conductivity in NbSe3 when the high-T and the low-T charge-density waves (CDWs) are simultaneously sliding have been performed. It is shown that the threshold electric field E-t1 for depinning the high-T CDW increases 4-5 times at the temperature at which the low-T CDW is formed, indicating the strong pinning effect resulting from the interaction between both CDWs. Under application of a radio-frequency (rf) field, Shapiro steps are never observed simultaneously for both CDWs. At the electric field less one than for high-T CDW sliding only Shapiro steps for low-T CDW were observed, and at higher field only Shapiro steps for high-T CDW exist

Domaines: Supraconductivité [cond-mat.supr-con]; Electrons fortement corrélés [cond-mat.str-el]

A.A. Sinchenko, Pierre Monceau. Dynamical transport properties of NbSe3 with simultaneous sliding of both charge-density waves. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2013, 87 (4), pp.045105. ⟨10.1103/PhysRevB.87.045105⟩. ⟨hal-00965665⟩