Meet your defects and stress

CIC nanoGUNE Seminars

Alejandro Lopez-Bezanilla, Argonne National Laboratory, USA
nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
Add to calendar
Subscribe to Newsletter
Meet your defects and stress Understanding the way defects modify materials' properties at the atomic scale is a grand challenge germane to controlling any material suited for electronic applications. Far from representing a drawback in the integration of new materials in the next generation of electronic devices, imperfections such as structural defects and dopants may lead to novel engineering possibilities. I will describe how structural disorder and various types of chemical modifications in low-dimensional systems can widen their small or non-existing electronic band gaps while preserving a good charge mobility. Also, physical stimuli such as external stress can open a band gap in 2D materials with Dirac cones. Finally I will discuss the possibility of creating different spin arrangements in O-deficient oxides depending on the doping rate and defect clustering geometry. **Host** : E. Artacho