TY - JOUR
T1 - Kerr effect of ordered and disordered Fe1-xPtx (001) alloy films
AU - Hu, Y. M.
AU - Huang, J. C.A.
AU - Huang, S. Y.
AU - Wu, T. H.
N1 - Funding Information:
Manuscript received October 13, 2000. This work was supported by the ROC NSC under Grant 89-2112-M-006-037. Y. M. Hu is with the Electric Engineering Department, Nan-Jeon Junior College of Technology and Commerce, Tainan, Taiwan. J. C. A. Huang and S. Y. Huang are with the Department of Physics, National Cheng-Kung University, Tainan, Taiwan (e-mail: [email protected]). T. H. Wu is with the Department of Humanities and Science, National Yunlin University of Science and Technology, Touliu, Taiwan. Publisher Item Identifier S 0018-9464(01)06721-8.
PY - 2001/7
Y1 - 2001/7
N2 - The (001) oriented Fe1-xPtx alloy films have been grown on Pt seeding layers on MgO (001) substrates by MBE. At growth temperature of 500 °C, rather ordered structures were formed for FePt, FePt2, and FePt3 films, which exhibit large perpendicular magnetic anisotropy and Kerr rotations. In contrast, Fe2Pt and Fe3Pt films were poorly ordered and did not display perpendicular magnetization for similar growth conditions. The optimal growth temperature of the FePt (x = 0.5) alloys occurs at about 500 °C, and the surface order-disorder transition occurs above 650 °C. We demonstrate that chemical ordering is important for perpendicular magnetic anisotropy and Kerr effects for Fe1-xPtx alloy films, which in turn depend strongly on the alloy composition and growth temperature.
AB - The (001) oriented Fe1-xPtx alloy films have been grown on Pt seeding layers on MgO (001) substrates by MBE. At growth temperature of 500 °C, rather ordered structures were formed for FePt, FePt2, and FePt3 films, which exhibit large perpendicular magnetic anisotropy and Kerr rotations. In contrast, Fe2Pt and Fe3Pt films were poorly ordered and did not display perpendicular magnetization for similar growth conditions. The optimal growth temperature of the FePt (x = 0.5) alloys occurs at about 500 °C, and the surface order-disorder transition occurs above 650 °C. We demonstrate that chemical ordering is important for perpendicular magnetic anisotropy and Kerr effects for Fe1-xPtx alloy films, which in turn depend strongly on the alloy composition and growth temperature.
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U2 - 10.1109/20.951190
DO - 10.1109/20.951190
M3 - Conference article
AN - SCOPUS:0035386032
SN - 0018-9464
VL - 37
SP - 2417
EP - 2419
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 4 I
T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag)
Y2 - 7 January 2001 through 11 January 2001
ER -