Kerr effect of ordered and disordered Fe1-xPtx (001) alloy films

Y. M. Hu; J. C.A. Huang; S. Y. Huang; T. H. Wu

doi:10.1109/20.951190

Kerr effect of ordered and disordered Fe_1-xPt_x (001) alloy films

Y. M. Hu
, J. C.A. Huang
, S. Y. Huang
, T. H. Wu

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The (001) oriented Fe_1-xPt_x 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 Fe_1-xPt_x alloy films, which in turn depend strongly on the alloy composition and growth temperature.

Original language	English
Pages (from-to)	2417-2419
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.951190
Publication status	Published - 2001 Jul
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: 2001 Jan 7 → 2001 Jan 11

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.951190

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title = "Kerr effect of ordered and disordered Fe1-xPtx (001) alloy films",

abstract = "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.",

author = "Hu, \{Y. M.\} and Huang, \{J. C.A.\} and Huang, \{S. Y.\} and Wu, \{T. H.\}",

note = "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.; 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) ; Conference date: 07-01-2001 Through 11-01-2001",

year = "2001",

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doi = "10.1109/20.951190",

language = "English",

volume = "37",

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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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DO - 10.1109/20.951190

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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 -

Kerr effect of ordered and disordered Fe_1-xPt_x (001) alloy films

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