Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2002.801827
Title: FePt fct-(001) texture prepared at lower temperature for high areal density perpendicular recording media
Authors: Xu, Y.
Chen, J.S. 
Dai, D.
Wang, J.P. 
Keywords: fct-(001) texture
FePt
High anisotropy
Perpendicular recording
Issue Date: Sep-2002
Citation: Xu, Y., Chen, J.S., Dai, D., Wang, J.P. (2002-09). FePt fct-(001) texture prepared at lower temperature for high areal density perpendicular recording media. IEEE Transactions on Magnetics 38 (5 I) : 2042-2044. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2002.801827
Abstract: FePt thin films with face-centered-tetragonal (fct)-(001) texture has been prepared by magnetron sputtering at elevated temperatures from 350 °C to 450 °C. Cr100-x Rux underlayer was used to induce the FePtfct-(001) texture. The dependence of the texture on Ru content and substrate temperature is investigated. Cr lattice constant was expanded by addition of Ru, resulting in a bigger lattice mismatch between the Cr(200)-FePt(001) planes. Greater fct phase with c axis oriented perpendicular to the film plane has been achieved in films with Cr91 Ru9 underlayer. This result may arise from the strain-enhanced preferred orientation. The increase of substrate temperature favors the formation of fct-(001) texture. However, higher substrate temperature results in less fct phase formation. This may be caused by the diffusion of Cr from underlayer into magnetic layer.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/83739
ISSN: 00189464
DOI: 10.1109/TMAG.2002.801827
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