About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithm Development in Materials Science and Engineering
|
Presentation Title |
Verification of the Self-consistent Potential Correction as Applied to Charged 2D Materials |
Author(s) |
Preston Allen Vargas, Richard G Hennig |
On-Site Speaker (Planned) |
Preston Allen Vargas |
Abstract Scope |
Charged defects have historically represented a problem for plane-wave basis DFT, as the periodic boundary conditions inherent to their design have been known to cause un-physical electrostatic effects, which are only magnified when studying low dimensional materials. This difficulty has been managed with great success by post-hoc energy corrections. However, the corrections were not performed self-consistently, which creates an issue. The charged system will have relaxed under un-physical electrostatic conditions, possibly resulting in an incorrect structure. To account for this, a newer self-consistent method was recently developed, but still requires independent verification against more well known corrections. As such, the newer method will be applied to charged and defective single and multi-layer structures of 2D materials to study how the self-consistent handling of the electrostatics affects the results of the calculations. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Electronic Materials |