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Influence of ligands on the electronic and magnetic properties of Fe porphyrin in gas phase and on Cu(001)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2015 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 117, no 17, 17B318Article in journal (Refereed) Published
Abstract [en]

A study of the adsorption of different axial ligands on Fe porphyrin (FeP), both isolated and adsorbed on Cu(001), was performed by means of Density Functional Theory. The electronic and magnetic properties of the adsorbed FeP resulted to be strongly influenced by the axial ligands considered, Cl and O. Cl induces an enhancement of the overall molecular magnetic moment of 3.0 mu(B) while O or O-2 leave the spin state of the molecule unchanged. The influence of the Cl in the electronic states was moreover studied by means of theoretical NEXAFS N K-edge, where the spectra of isolated FeP and FeP with Cl ligand were calculated. The adsorption of the FeP molecules on Cu(001) leads in case of Cl to a further increase of the magnetic moment due to strong deformation of the Fe-N bond.

Place, publisher, year, edition, pages
2015. Vol. 117, no 17, 17B318
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-256845DOI: 10.1063/1.4917242ISI: 000354984100142OAI: oai:DiVA.org:uu-256845DiVA: diva2:827133
Available from: 2015-06-26 Created: 2015-06-26 Last updated: 2017-12-04Bibliographically approved

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Brena, BarbaraHerper, Heike C.

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