Abstract
1.Introduction:Quantitative high-resolution TEM (QHREM) serves for the determination of structures of crystal defects. The structure retrieval problem is usually considered to be solved when a simulated image calculated from a model structure matches with high quality to the experimental image. Often, however, surprisingly large (and continuous) shifts of individual atomic columns are possible before the simulation looses its similarity to the experiment. Therefore, we propose printing structure retrieval results as “atomic ball pictures” with the radius of the ball as a circle of confidence (replacing the chemical atomic radius otherwise used for these pictures). Statistical methods are necessary to derive the proper radius of the circles which are element and site specific : Monte-Carlo based strategies are highly suitable for this purpose. As a model system we use two bulk sections from a micrograph of a Cu/Sapphire interface (Fig. 1). For interface properties see.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call