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

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Abstract

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.

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Authors and Affiliations

  1. Data Storage Institute, DSI Building, 5 Engineering Drive 1 (off Kent Ridge Crescent, NUS), 117608, Singapore

    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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  1. X.H. Liu
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  2. M.H. Hong
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  3. W.D. Song
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  4. G.X. Chen
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  5. J.F. Chong
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  6. J.P. Wang
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  7. Y.H. Wu
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  8. T.C. Chong
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Correspondence to X.H. Liu.

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PACS

75.50.Ss; 75.60.Ej; 75.70.Ak; 68.55.Ik

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Liu, X., Hong, M., Song, W. et al. Pulsed laser deposition of oriented barium ferrite (BaFe12O19) thin films. Appl. Phys. A 78, 423–425 (2004). https://doi.org/10.1007/s00339-002-1957-8

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  • DOI: https://doi.org/10.1007/s00339-002-1957-8

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