Local atomic arrangements and lattice distortions in layered Ge-Sb-Te crystal structures.

ABSTRACT: Insights into the local atomic arrangements of layered Ge-Sb-Te compounds are of particular importance from a fundamental point of view and for data storage applications. In this view, a detailed knowledge of the atomic structure in such alloys is central to understanding the functional properties both in the more commonly utilized amorphous-crystalline transition and in recently proposed interfacial phase change memory based on the transition between two crystalline structures. Aberration-corrected scanning transmission electron microscopy allows direct imaging of local arrangement in the crystalline lattice with atomic resolution. However, due to the non-trivial influence of thermal diffuse scattering on the high-angle scattering signal, a detailed examination of the image contrast requi

SUBMITTER: Lotnyk A 

PROVIDER: S-EPMC4879703 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature