Search results for "Site symmetry"

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Use of site symmetry in supercell models of defective crystals: Polarons in CeO2

2017

The authors thank R. Merkle and G. W. Watson for stimulating discussions. E. K. also acknowledges partial financial support from the Russian Science Foundation for the study of charged defects under the project 14-43-00052. A. C. also acknowledges financial support from the University of Latvia Foundation (Arnis Riekstins's "MikroTik" donation). E. K. and D. G. express their gratitude to the High Performance Computer Centre in Stuttgart (HLRS, project DEFTD 12939) for the provided computer facilities whereas R. A. E. thanks the St. Petersburg State University Computer Center for assistance in high-performance calculations.

PhysicspolaronCondensed matter physicssite symmetryGeneral Physics and Astronomy02 engineering and technologyoxygen vacancy021001 nanoscience & nanotechnologyPolaron01 natural sciencesCrystallographic defectSymmetry (physics)Condensed Matter::Materials SciencePerfect crystalLinear combination of atomic orbitalsPosition (vector)Vacancy defect0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]Wyckoff positionsPhysical and Theoretical Chemistry010306 general physics0210 nano-technologyfirst principles calculationsCeO2
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Site symmetry approach applied to the supercell model of MgAl2O4 spinel with oxygen interstitials: Ab initio calculations

2018

This study has been carried out within the framework of the EUROfusion Consortium and has been provided funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The authors are indebted to E.A. Kotomin, A.I. Popov and R. Vila for stimulating discussions. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Calculations have been performed using both the Marconi supercomputer system at the Computational Simulation Centre (Italy) and the Computer Center of St. Petersburg State University.

Single neutral oxygen interstitialMaterials scienceGeneral Computer ScienceBand gapSite symmetryGeneral Physics and Astronomy02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesMolecular physicsPhysics::GeophysicsCrystalCondensed Matter::Materials ScienceLattice constantPerfect crystalAb initio quantum chemistry methods:NATURAL SCIENCES:Physics [Research Subject Categories]General Materials ScienceBulk modulusSpinelMgAl2O4 spinelGeneral Chemistry021001 nanoscience & nanotechnology0104 chemical sciencesComputational MathematicsMechanics of MaterialsengineeringWyckoff positions0210 nano-technologyFirst principles calculations
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