6533b86dfe1ef96bd12ca8cc

RESEARCH PRODUCT

Ab initiocalculations of theHcenters in MgF2crystals

Eugene A. KotominEugene A. KotominF U AbuovaAbdirash Akilbekov

subject

CrystalCondensed Matter::Materials ScienceAb initio quantum chemistry methodsChemistryAb initioCharge densityElectronic structureCrystal structureSIESTA (computer program)Atomic physicsCrystallographic defect

description

MgF2 with rutile structure is important wide-gap optical material with numerous applications. We present and discuss the results of calculations for basic hole defects - interstitial F atoms (called also the colour H centres). This study is based on the large scale ab initio DFT calculations using hybrid B3PW exchange-correlation functional as implemented into CRYSTAL computer code. The electronic structure, atomic geometry, charge density distribution are calculated and discussed.

https://doi.org/10.1088/1757-899x/38/1/012041