Plastic deformation down to 4.2 K of CoO single crystals and T.E.M. observation of dislocations

Abstract

Plastic deformation of CoO has been performed at 4.2 K by compression of single crystals along . The influence of thermodynamic conditions of specimen preparation has been shown. The dislocation structure observed by trnasmission electron microscopy (TEM) is not directly related to the one existing during deformation at very low temperature Etude de la deformation plastique de monocristaux de CoO le long de entre 300 et 4,2 K. Influence des conditions thermodynamiques de preparation. Observation de la structure des dislocations du microscope electronique en transmission: elle n'est pas directement reliee a celle existant pendant la deformation a tres basse temperature