Fe-doped SnO2: A Quantum-chemical Approach
| Authors | A. Stashans , P. Puchaicela |
| Affiliations | Grupo de Fisicoquímica de Materiales, Universidad Técnica Particular de Loja, Apartado 11-01-608 Loja, Ecuador |
| Е-mail | arvids@utpl.edu.ec, ppuchaicela@utpl.edu.ec |
| Issue | Volume 7, Year 2015, Number 2 |
| Dates | Received 09 February 2015; revised manuscript received 30 April 2015; published online 10 June 2015 |
| Citation | A. Stashans, P. Puchaicela, J. Nano- Electron. Phys. 7 No 2, 02032 (2015) |
| DOI | |
| PACS Number(s) | 61.72.S –, 61.72.U –, 71.15.Mb |
| Keywords | DFT+U (2) , SnO2 (11) , Impurity doping, Microstructure (21) , Magnetism (9) . |
| Annotation | We report first-principles results obtained on Fe impurity incorporation into the SnO2 material. Different impurity concentrations have been taken into consideration when computing structural, electronic and magnetic properties of the material. DFT + U methodology within the GGA approach applied to a 96-atom supercell allowed us to establish the equilibrium geometry of the system, which consists of six defect-nearest oxygens shifting towards the Fe impurity. Antiparallel magnetic alignment between the electrons of the Fe 3d and impurity-neighbouring O 2p atomic orbitals forming the FeO6 complex has been found. |
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List of References |
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