Natural Oxidation of thin Fe Films on V Buffer Layer

• Authors: H. Dawczak-Dębicki , A. Marczyńska , A. Rogowska , M. Wachowiak , M. Nowicki , S. Pacanowski , B. Jabłoński , W. Kowalski , J. Grembowski , R. Czajka , L. Smardz
• Languages of publication: EN

Abstracts

EN

We have studied oxidation kinetics of Fe thin film under atmospheric conditions using the fact that metallic iron is a ferromagnet but ultrathin natural iron oxides are approximately nonmagnetic at room temperature. As a consequence, oxidation is associated with a loss in total Fe magnetic moment. Results show that the sample with an initial Fe thickness equal to 10 nm oxidize relatively fast (time constant τ=0.05 day), whereby a constant amount of 2.5 nm of metal is transformed into oxides. For lower iron initial thickness (d_{i}=4 nm) the time constant for oxidation significantly increases reaching a value of 2 days. Furthermore, X-ray photoelectron spectroscopy studies performed after 144 days of oxidation revealed formation of hematite (α-Fe₂O₃) thin film on the metallic rest of iron.

Keywords

EN

75.70.-i; 68.55.-a

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 68.55.-a: Thin film structure and morphology(for methods of thin film deposition, film growth and epitaxy, see 81.15.-z)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 4
• Pages: 1272-1276

Dates

published

2017-10

received

2016-10-24

(unknown)

2017-09-06

Contributors

author

H. Dawczak-Dębicki

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
• Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

A. Marczyńska

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

A. Rogowska

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
• Faculty of Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

M. Wachowiak

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
• Faculty of Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

M. Nowicki

• Faculty of Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

S. Pacanowski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

B. Jabłoński

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
• Faculty of Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

W. Kowalski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

J. Grembowski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

R. Czajka

• Faculty of Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland

author

L. Smardz

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.132.1272