3 papers
cond-mat.mtrl-sci2021
A convolutional neural network for defect classification in Bragg coherent X-ray diffraction
Bruce Lim, Ewen Bellec, Maxime Dupraz +8
Coherent diffraction imaging enables the imaging of individual defects, such as dislocations or stacking faults, in materials.These defects and their surrounding elastic strain fie…
cond-mat.str-el2020
The essential role of surface pinning in the dynamics of charge density waves submitted to external dc fields
E. Bellec, V. L. R. Jacques, J. Caillaux +1
A Charge Density Wave (CDW) submitted to an electric field displays a strong shear deformation because of pinning at the lateral surfaces of the sample. This CDW transverse pinning…
cond-mat.str-el2019
Evidence of Charge Density Wave transverse pinning by x-ray micro-diffraction
E. Bellec, I. Gonzalez-Vallejo, V. L. R. Jacques +5
Incommensurate charge density waves (CDW) have the extraordinary ability to display non-Ohmic behavior when submitted to an external field. The mechanism leading to this non trivia…