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Direct measurement of spatial distortions of charge density waves in
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) characteristic of in a two-probe transport setup at . The red line is the fit to the predicted thermal creeps when the CDW is pinned, and the green line shows the for . The left inset shows the dimension of the sample and the experimental setup. The right inset for shows a transition point at .

Image of FIG. 2.
FIG. 2.

(Color online) (a) Evolution of the half-width of the Bragg peak vs the applied voltage. According to the changes of the half-width, one can classify CDW into three phases: (I) the creeping CDW state, (II) the moving solid, and (III) the moving liquid. (b) The triplet phase change at different voltages. Note that in the sliding phase, is a direct evidence that the pinning forces become irrelevant. (c) Peak profiles at different voltages. The fits were obtained by convolution to the resolution function as measured on a nearby Bragg peak . The bar shows the resolution, 0.0033 [reciprocal lattice unit (r.l.u.)], along the longitudinal direction .

Image of FIG. 3.
FIG. 3.

(Color online) Triplet phase change extrapolated from curve fitting of the three-wave diffraction profiles. The analysis is based on the dynamic theory for multiple diffraction, giving and 18° at and , respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Direct measurement of spatial distortions of charge density waves in K0.3MoO3