Bibliographic Details
| Title: |
Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy. |
| Authors: |
Hawoong Hong1, Jongjin Kim2, Xinyue Fang3, Seungbum Hong2,4, Chiang, T.-C.3 |
| Source: |
Applied Physics Letters. 1/9/2017, Vol. 110 Issue 2, p1-5. 5p. 1 Chart, 3 Graphs. |
| Subject Terms: |
*IRON oxides, *THIN films, *MOLECULAR beam epitaxy, *X-ray diffraction, *SAPPHIRES, *MAGNETITE, METALLIC oxide spectra |
| Abstract: |
The thin films of iron oxides including magnetite (Fe3O4) and hematite (α-Fe2O3) have many important applications. Both forms of oxide can occur naturally during film growth by iron deposition under various oxidation environments; an important issue is to understand and control the process resulting in a single-phase film. We have performed the in-situ -time studies using X-ray diffraction of such film growth on sapphire (001) under pure ozone by monitoring the (00L) rod. Stable magnetite growth can be maintained at growth temperatures below 600 °C up to a certain critical film thickness, beyond which the growth becomes hematite. The results demonstrate the importance of interfacial interaction in stabilizing the magnetite phase. [ABSTRACT FROM AUTHOR] |
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| Database: |
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