Pulsed laser deposition of oriented barium ferrite (BaFe12O19) thin films

X. H. Liu, M. H. Hong, W. D. Song, G. X. Chen, J. F. Chong, J. P. Wang, Y. H. Wu, T. C. Chong

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Barium ferrite (BaFe12O19) thin films have been deposited by pulsed laser deposition at 900°C in 250 mTorr oxygen on Si substrates with Pt(111) underlayers. The barium ferrite films contained platelet grains and a small amount of acicular grains, with sizes of 300 nm and 80 × 300 nm, respectively, and had a surface roughness of 11 nm. Vibrating-sample magnetometer measurements indicated that the BaFe12O19 films have some perpendicular orientation, with a perpendicular squareness of 0.64 and an in-plane squareness of 0.28. The saturation magnetization is about 190 emu/cc. The perpendicular and in-plane coercivities are 2.1 kOe and 1.6 kOe, respectively.

Original languageEnglish (US)
Pages (from-to)423-425
Number of pages3
JournalApplied Physics A: Materials Science and Processing
Issue number3
StatePublished - Feb 1 2004


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