No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Kinetics and intermediate phases in epitaxial growth of Fe3
films from deposition and thermal reduction
A. Fernández-Pacheco, J. M. De Teresa, J. Orna, L. Morellon, P. A. Algarabel, J. A. Pardo, M. R. Ibarra, C. Magen, and E. Snoeck, Phys. Rev. B 78, 212402 (2008).
T. Nagahama, Y. Matsuda, K. Tate, T. Kawai, N. Takahashi, S. Hiratani, Y. Watanabe, T. Yanase, and T. Shimada, Appl. Phys. Lett. 105, 102410 (2014).
R. A. Robie and B. S. Hemingway, “ Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar (105 Pascals) pressure and at higher temperatures,” R. A. Robie and B. S. Hemingway, U.S. Geological Survey Bulletin 1259 (1968), p. 17.
T. L. Cottrell, The Strengths of Chemical Bonds ( Butterworths, London, 1958).
C. H. Bamford, C. F. H. Tipper, and R. G. Compton, Comprehensive Chemical Kinetics ( Elsevier Pub. Co., Amsterdam, New York, 1969).
H. H. Kung, Transition Metal Oxides: Surface Chemistry and Catalysis (Elsevier, Distributors for the U.S. and Canada, Elsevier Science Pub. Co., Amsterdam, The Netherlands, New York, NY, USA, 1989).
H. Iida, T. Koizumi, Y. Uesu, K. Kohn, N. Ikeda, S. Mori, R. Haumont, P.-E. Janolin, J.-M. Kiat, M. Fukunaga, and Y. Noda, J. Phys. Soc. Jpn. 81, 024719 (2012).
B. D. Cullity and C. D. Graham, Introduction to Magnetic Materials ( IEEE/Wiley, Hoboken, NJ, 2009).
Article metrics loading...
We have studied the kinetics of the transitions between the Fe2O3 and Fe3O4 phases as thin epilayers (∼2.5 nm) on Al2O3 (001) substrates using time-resolved reflection high energy electron diffraction. The different iron oxide phases were identified using a combination of in-situ and ex-situ characterizations. The transition from an α-Fe2O3 (001) epilayer to a Fe3O4 (111) epilayer through thermal reduction was found to be determined by the Fe-O bonding energy, resulting in a long time scale. The oxidation at high temperature converts a Fe3O4 (111) epilayer to an α-Fe2O3 (001) epilayer quickly; at low temperature, a γ-Fe2O3 (111) epilayer was slowly generated instead. By repeating the deposition/thermal reduction processes, a thicker Fe3O4 (111) film was obtained, which exhibit high crystallinity and moderate magnetic coercivity.
Full text loading...
Most read this month