Search results for "lcao"

showing 3 items of 3 documents

Ab initio simulations on charged interstitial oxygen migration in corundum

2018

We have performed this work within the framework of the EUROfusion Consortium receiving funding from the European grant agreement 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Authors thank R. Vila, A.I. Popov, A. Luchshik and R.A. Evarestov for fruitful discussions. To carry out large-scale calculations, we have used the HPC supercomputer at Stuttgart University (Germany)

Nuclear and High Energy PhysicsMaterials scienceAb initiochemistry.chemical_elementCorundum02 engineering and technologyengineering.material01 natural sciences7. Clean energyMolecular physicsOxygenIonCondensed Matter::Materials ScienceHybrid DFT-LCAO calculationsCondensed Matter::Superconductivity0103 physical sciences:NATURAL SCIENCES:Physics [Research Subject Categories]010306 general physicsInstrumentationα-Al2O3(corundum sapphire)Charged oxygen interstitial diffusion021001 nanoscience & nanotechnologychemistryLinear combination of atomic orbitalsengineeringSapphireDensity functional theory0210 nano-technologyNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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First-principles LCAO study of phonons in NiWO4

2011

Abstract The electronic, structural and phonon properties of antiferromagnetic wolframite-type NiWO4 have been studied using first-principles spin-polarized LCAO calculations based on the hybrid Hartree-Fock (HF)/density functional (DFT) scheme. The influence of different percentages of HF contribution, i.e. different correlation strength, on the structure and phonon frequencies has been investigated and compared with the available experimental data.

PhysicsCondensed matter physicsPhononPhysicsQC1-999phononsStructure (category theory)General Physics and Astronomylcao02 engineering and technologyElectronic structureelectronic structure021001 nanoscience & nanotechnology01 natural sciencesLinear combination of atomic orbitalsniwo40103 physical sciencesAntiferromagnetismCondensed Matter::Strongly Correlated Electrons010306 general physics0210 nano-technologytungstatesOpen Physics
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Maestri e cantieri del Cinquecento in un centro della Sicilia occidentale: Alcamo

2020

La città di Alcamo (in provincia di Trapani) è stato uno dei luoghi dove la resistenza al classicismo e la sopravvivenza del gotico si sono protratte a lungo, travalicando la metà del XVI secolo con l'esperienza di artefici di provenienza esterna e di formazione tradizionale ma aperti a un ventaglio di possibili alternative, disponibili a incamerare opzioni diverse o ad utilizzare indifferentemente i due linguaggi. Non si tratta di un episodio isolato o di un'eccezione, poiché in molteplici periferie siciliane non studiate, ancora in pieno Cinquecento, si può assistere a un fenomeno analogo. Alcamo comunque costituisce un osservatorio ideale: qui sperimentazioni, combinazioni, integrazioni …

Settore ICAR/18 - Storia Dell'ArchitetturaGirolao Vicchiuzzo Late Gothic asters Classicis Alcao Sicily
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