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Title: Tailoring the growth of L10-FePt for spintronics applications
Authors: Tahmasebi, T.
Piramanayagam, S.N.
Sbiaa, R.
Tan, H.K.
Law, R.
Lua, S.
Chong, T.C. 
Keywords: Crystallography
High anisotropy constant
Perpendicular magnetic anisotropy
Issue Date: Dec-2011
Citation: Tahmasebi, T., Piramanayagam, S.N., Sbiaa, R., Tan, H.K., Law, R., Lua, S., Chong, T.C. (2011-12). Tailoring the growth of L10-FePt for spintronics applications. Physica Status Solidi - Rapid Research Letters 5 (12) : 426-428. ScholarBank@NUS Repository.
Abstract: The effect of seed layers on the magnetic and structural properties of FePt thin films was investigated. For the case of Cr(200) seed layer, no ordered L10-FePt phase in (001) orientation was observed. The insertion of a thin MgO barrier between the Cr and FePt layers improved the perpendicular magnetization orientation of L10-FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L10-FePt thin films can be developed on Pd[100] at high substrate temperature with the lattice mismatch of below 1% and therefore low roughness compared to MgO or Cr seed layers. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Ordered L10-FePt with large magnetocrystalline anisotropy (Ku) and high saturation magnetization (Ms) enables potential scaling of spintronic devices down to 5 nm. FePt films need to be smooth and possess good (001) texture in order to achieve the desired properties for spintronics applications. This Letter focuses on tailoring of L10-FePt growth for such applications. The L10-FePt magnetic layers deposited on Pd seed layers exhibit large ordering parameter, smoothness and strong perpendicular magnetic anisotropy. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Physica Status Solidi - Rapid Research Letters
ISSN: 18626254
DOI: 10.1002/pssr.201105379
Appears in Collections:Staff Publications

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