International audienceStresses and strains around a dislocation at a grain boundary in germanium are measured by a combination of high-resolution electron microscopy and geometric phase analysis. The method is established by first measuring the strains around a matrix dislocation in silicon. Stresses are determined using linear elastic theory and bulk elastic constants. Strain measurements are shown to agree with theoretical calculations based on linear anisotropic elastic theory to 0.2% at a spatial resolution of 2-3 nm. A dislocation constricted at a coherent twin boundary in germanium is subsequently analysed. The method is adapted to cope with the problem that the reference lattice is not identical for the whole field of view, due to th...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
A new technique that is independent of image contrast and robust to the presence of experimental noi...
International audienceFundamental understanding of defect-defect interactions such as dislocations-g...
International audienceStresses and strains around a dislocation at a grain boundary in germanium are...
International audienceStresses and strains around a dislocation at a grain boundary in germanium are...
A partir de résultats expérimentaux obtenus par Microscopie Electronique Haute Resolution et relaxat...
AbstractThe interaction between dislocation pile-ups and grain boundaries gives rise to heterogeneou...
This paper summarizes the electron microscope observations (high resolution, diffraction and α-fring...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
A new technique that is independent of image contrast and robust to the presence of experimental noi...
International audienceFundamental understanding of defect-defect interactions such as dislocations-g...
International audienceStresses and strains around a dislocation at a grain boundary in germanium are...
International audienceStresses and strains around a dislocation at a grain boundary in germanium are...
A partir de résultats expérimentaux obtenus par Microscopie Electronique Haute Resolution et relaxat...
AbstractThe interaction between dislocation pile-ups and grain boundaries gives rise to heterogeneou...
This paper summarizes the electron microscope observations (high resolution, diffraction and α-fring...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
HVEM in situ straining experiments on Si and Ge bicrystals show that dislocations can be transmitted...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
Des sous-joints de flexion pure dans le germanium ont été observés par microscopie électronique à ha...
A new technique that is independent of image contrast and robust to the presence of experimental noi...
International audienceFundamental understanding of defect-defect interactions such as dislocations-g...