Molecular and solid-state (8-hydroxy-quinoline)aluminum interaction with magnesium: A first-principles study

S. Meloni, A. Palma, A. Kahn, J. Schwartz, R. Car

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Abstract

The interaction between Mg and (8-hydroxyquinoline)aluminum, Al q3, is investigated via ab initio molecular dynamics based on density-functional theory. We model the Al q3 thin film both with a single Al q3 molecule in vacuo (as is usually done in the literature) and with an Al q3 crystalline structure. Comparing the results from these two models, we show that bulk calculations provide a better description of the chemical processes involved, allowing the Mg atom to react with two neighboring Al q3 molecules, as was alluded to in a previous publication [S. Meloni, A. Palma, A. Kahn, J. Schwartz, and R. Car, J. Am. Chem. Soc. 125, 7808 (2003)]. Moreover, core-level shift calculations are in good agreement with experimental measurements only when using the solid phase approach. We also propose a different interpretation of the Al (2p) experimental core level presented in a previous work [C. Shen, A. Kahn, and J. Schwartz, J. Appl. Phys. 89, 449 (2001)].

Original languageEnglish (US)
Article number023707
JournalJournal of Applied Physics
Volume98
Issue number2
DOIs
StatePublished - Jul 15 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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