E.D. Tober, R.F.C. Farrow, et al.
Physical Review Letters
Paper
Nanoscale phase separation in Fe3O4(111) films on sapphire(0001) and phase stability of Fe3O4(001) films on MgO(001) grown by oxygen-plasma-assisted molecular beam epitaxy
Abstract
A phase instability in oxygen-plasma-assisted molecular beam epitaxy of Fe3O4 films on sapphire (0001) substrates was investigated. Growth conditions were specified for which single-phase, epitaxial Fe3O4 (111) films can be grown by plasma-assisted molecular beam epitaxy. It was shown that single-phase Fe3O4 (111) films are more difficult to magnetize than Fe3O4 (001) films.
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