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Tailoring the growth of L1 0 ‐FePt for spintronics applications
Author(s) -
Tahmasebi Taiebeh,
Piramanayagam Seidikkurippu N.,
Sbiaa Rachid,
Tan Hang Khume,
Law Randall,
Lua Sunny,
Chong Tow Chong
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105379
Subject(s) - materials science , spintronics , thin film , limiting , condensed matter physics , substrate (aquarium) , epitaxy , lattice (music) , magnetization , layer (electronics) , nanotechnology , ferromagnetism , magnetic field , mechanical engineering , oceanography , physics , quantum mechanics , geology , acoustics , engineering
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 L1 0 ‐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 L1 0 ‐FePt by limiting diffusion of Cr into the FePt magnetic layer. Ordered L1 0 ‐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)