Author/Authors :
Rideau، نويسنده , , D. and Monceau، نويسنده , , P. and Currat، نويسنده , , R. and Requardt، نويسنده , , H. and Nad، نويسنده , , F. and Lorenzo، نويسنده , , J.E. and Brazovskii، نويسنده , , S. and Detlefs، نويسنده , , C. and Grübel، نويسنده , , G.، نويسنده ,
Abstract :
The phase gradient in a sliding-charge density wave (CDW), which is observable as a longitudinal shift, q∝∂φ/∂x, of the CDW satellite peak position, is due to the conversion free-electrons↔CDW-condensate, at the current electrodes. Using high resolution X-ray scattering techniques and time-resolved techniques, we monitor, on thin NbSe3 whiskers, the shift, q(x), and its relaxation, q(t), upon switching off the current.
