Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1517425 | Journal of Physics and Chemistry of Solids | 2008 | 6 Pages |
Abstract
A review of our recent and ongoing extensive high-pressure synchrotron X-ray diffraction and high-pressure optical spectroscopy studies of nanocrystalline composites is presented. These heterophased, nano-architectured composites consist of amorphous matrices with dispersed nanocrystals or quantum dots. We show how besides compositional variations, additional tuning of these glass-derived nanocomposites can be done by exploiting elevated pressure. We examine stability and pressure-driven phase transitions occurring in nanocrystals as well as structural changes occurring in the glass matrix. Finally, we discuss the influence of the glass matrix of a composite on the structural transformations occurring in the embedded nanocrystals.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Kristina E. Lipinska-Kalita, Oliver A. Hemmers, Patricia E. Kalita, Gino Mariotto, Steve Gramsh, Russell J. Hemley, Thomas Hartmann,