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**Collective transport of charges in charge density wave systems based on traveling soliton lattices**

*A. Rojo-Bravo, V. L. R. Jacques, and D. Le Bolloc’h*

Phys. Rev. B 94, 201120(R) (2016)

*Coherent x-ray diffraction shows that collective transport of charges observed in CDW materials could be due to a soliton lattice in motion.*

**Laser-Induced Charge-Density-Wave Transient Depinning in Chromium**

*V. L. R. Jacques, C. Laulhé, N. Moisan, S. Ravy, and D. Le Bolloc’h*

Phys. Rev. Lett. 117, 156401 (2016)

*When an ultrafast laser pulse hits chromium, the CDW can be depinned from the host lattice during few tens of nanoseconds. A new way to get sliding CDW and sliding SDW ?*

**Effect of dimensionality on sliding charge density waves : The quasi-two-dimensional TbTe3 system probed by coherent x-ray diffraction**

*D. Le Bolloc’h, A.A. Sinchenko, V.L.R. Jacques, L. Ortega, J.E. Lorenzo, G. Chahine, P. Lejay and P. Monceau*

*When a dc external current is applied to a quasi-2D CDW compound like TbTe3, the CDW displays a sudden change of his topology. The depinning process of the CDW under current is viewed as a shear process (see the blue wave fronts in the figure) .*

**Charge- and spin-density waves observed through their spatial ﬂuctuations
by coherent and simultaneous x-ray diffraction**

*V. L. R. Jacques, E. Pinsolle, S. Ravy, G. Abramovici and D. Le Bolloc’h*

Physical Review B 89, 245127 (2014)

*By using a coherent x-ray beam and simultaneous diffraction, a comparison between two coexisting phases can be observed. This is the case of chromium where the SDW displays a long range order despite a short range CDW. An explanation based on surface nesting is proposed.*

**Estimation of coherence properties of an undulator-generated x-ray beam from near-ﬁeld and far-ﬁeld slit diffraction visibilities**

*V. L. R. Jacques, D. Le Bolloc’h, E. Pinsolle, F.-E. Picca and S. Ravy*

Physical Review B 86, 144117 (2012)

*Precise measurements of contrast of fringes due to the diffraction a micrometer slit by a coherent x-ray beam, from the Fresnel to the Fraunhofer regime, allows us to determine the degree of coherence of the beam.*

**Creep, Flow, and Phase Slippage Regimes : An Extensive View of the Sliding Charge-Density Wave Revealed by Coherent X-ray Diffraction**

*E. Pinsolle, N. Kirova, V. L.R. Jacques, A.A. Sinchenko and D. Le Bolloc’h*

Phys. Rev. Lett. **109**, 256402 (2012)

Physica B **407**, 1848-1851 (2012)

*When a dc external current is applied to a quasi-1D CDW compound, the CDW may slide through the atomic lattice, creating a new current in the sample. By using coherent diffraction, we observe here the precise behavior of the CDW : For small currents, the CDW strongly disorders leading to speckles. Above the threshold current, in the sliding state, the CDW reorders by motion : speckles disappear.*

**Coherent diffraction through the fractional Fourier transform**

*D. Le Bolloc’h et J.F. Sadoc*

Eur. Phys. J. B 81, 481 (2011)

*The use of the Fractional Fourier Transform is well suited to treat the propagation of a coherent beam from the Fresnel to the Fraunhofer regime. This technique is particularly efficient when dealing with the diffraction of two successive slits.*

**Etude du coeur d’une dislocation de volume par diffraction cohérente de rayons X**

*V.L.R. Jacques, S. Ravy, D. Le Bolloc’h, E. Pinsolle, M. Sauvage-Simkin, and F. Livet*
Phys. Rev. Lett. **106**, 065502 (2011)

**Etude du coeur d’une dislocation de volume par diffraction cohérente de rayons X**

**Correlations up to the micrometer scale observed by coherent x-ray diffraction**

D. Le Bolloc’h, V. L. Jacques, N. Kirova, J. Dumas, S. Ravy, *et al.*

Phys. Rev. Lett. 100, 096403 (2008)

Plein SUD 2008 (Journal Univ. Orsay)

V. L. R. Jacques, D. Le Bolloc’h, S. Ravy, J. Dumas, C. V. Colin,and C. Mazzoli

Phys. Rev. B. 85, 035113 (2012)

**SrTiO _{3} displacive transition revisited by coherent x-ray diffraction**

S. Ravy, Le Bolloc’h, R. Currat, *et al.*

Phys. Rev. Lett. 98, 105501 (2007)

**Charge density wave dislocation as revealed by coherent x-ray diffraction**

D. Le Bolloc’h, S. Ravy, J. Dumas *et al.*