Ontology highlight
ABSTRACT:
SUBMITTER: Lee S
PROVIDER: S-EPMC4707471 | biostudies-literature | 2016 Jan
REPOSITORIES: biostudies-literature
Scientific reports 20160111
Using a strain-rosette, we demonstrate the existence of transverse strain using time-resolved x-ray diffraction from multiple Bragg reflections in laser-excited bulk gallium arsenide. We find that anisotropic strain is responsible for a considerable fraction of the total lattice motion at early times before thermal equilibrium is achieved. Our measurements are described by a new model where the Poisson ratio drives transverse motion, resulting in the creation of shear waves without the need for ...[more]