Screening was performed using XtalOpt to explore the Ag(II)-Be-F energy landscape. Initial random structures were generated for cells with 2, 4, 6, and 8 formula units per search, totaling 650 structures (including 100 seeds) per search.
Calculations were conducted via VASP using the PAW method and the PBEsol functional. The plane-wave cutoff was 600 eV with an SCF convergence threshold of 10-7 eV.
The DFT+U method was applied (U=5eV and J=1eV) to correctly describe the localized 4d9 electrons across ferromagnetic and antiferromagnetic configurations.
Structures were symmetrized using FINDSYM. The five lowest-energy polymorphs were chosen for final analysis of their band gaps, DOS, band structures, and phonon curves.
Data availible in this repository are:
* Output data for key findings
-(OUTCAR files +DOS and pDOS files and FORCE-SET files for phonon dispersion);
* Cif files for optimised structures;
For further details, please consult the readme.txt file