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Effect of carbon and post-annealing treatment on magnetic properties of high-quality iron thin films
- Source :
-
Journal of Crystal Growth . Dec2006, Vol. 297 Issue 2, p390-395. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: High-quality (110) Fe films with thickness of 200nm were grown on Al2O3 (0006) substrates by low-pressure metal organic chemical vapor deposition (LP-MOCVD). The effects of residual carbon and post-annealing treatment on magnetic properties of Fe films were studied. X-ray photoelectron spectroscopy (XPS) measurements revealed that almost all the interstitial carbon atoms in Fe films can be removed by annealing at temperature of 600°C. Vibrating sample magnetometer (VSM) showed that the in-plane (out-of-plane) coercivity of the film annealed at 600°C is clearly larger (smaller) than that of as-grown one, which can be assigned to the tensile stress relaxation due to the removal of carbon. As the annealing temperature increased from 600 to 750°C, the in-plane coercivity decreased while the out-of-plane coercivity increased. Meanwhile, the in-plane remanence ratios increased rapidly with the increase of annealing temperature, but the out-of-plane remanence ratios changed slightly. The origin of the changes of magnetic properties with annealing temperatures was discussed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 297
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 23518305
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2006.10.148