We attempted to fabricate a high-quality Fe 3 O 4 film while satisfying both low-thermal preparation (≦573 K) and film thinness (≦500 Å). X-ray diffractometry showed that our prepared Fe 3 O 4 film was epitaxially grown onto a MgO (100) substrate. The saturation magnetization, resistivity, and Verwey point were, respectively, ∼438emu/cm 3 , ∼10000μcm, and ∼110K. These values were comparable to those of the Fe 3 O 4 bulk. Our experimental results suggested that a high-quality Fe 3 O 4 film could be obtained even under the crucial conditions of the deposition temperature being low (∼523 K) and the film being ultrathinned (∼100 Å).
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)