Comparative evaluation of performance of percolated perpendicular media using FePt–MgO/Pt/Cr trilayer and FePt–MgO/MgO bilayer

Sun, Andy; Tsai, Ya-Ting; Hsu, Jen‐Hwa; Kuo, P. C.; Huang, Huei Li

doi:10.1016/j.jmmm.2008.08.033

Cited by 6 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2(d). In contrast to the columns of FePt that are usually obtained by using underlayers such as Pt(001)/ CrRu(002) 7) and MgO(002) 18) in the previous works, the granular FePt films separated by SiO 2 (41% O 2 /Ar) was observed during the post-annealing process. These changes in microstructures and morphology due to the ion-beam bombardment process as well as post-annealing will have a strong influence on magnetic properties as discussed below.…”

Section: Resultscontrasting

confidence: 58%

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers

Lin¹,

Chiu²,

Sun

et al. 2009

jjap

Self Cite

View full text Add to dashboard Cite

We have shown that the structural and magnetic properties of FePt thin films were affected strongly by capped SiO 2 layers prepared by ionbeam bombardment followed by post-annealing. Compared to the single fcc FePt phase in the as-deposited FePt/SiO 2 bilayer (0% O 2 /Ar), annealing at 550 C produced an ordered L1 0 FePt phase with enhanced coercivity ($14 kOe). Increasing the %O 2 /Ar during deposition of the top SiO 2 layer resulted in smaller ordered FePt grains separated by grain boundaries of SiO 2 . We find that the (001) diffraction peak is broadened considerably with larger SiO 2 deposition %O 2 /Ar and annealing, likely due to the induced strain. Our results indicate that FePt/ SiO 2 films deposited with lower %O 2 /Ar, the oxygen atoms created by the ion-beam bombardment act effectively to inhibit the FePt grain growth, whereas the excess oxygen atoms present during film deposition with higher %O 2 /Ar may induce a local strain on the FePt crystallites by occupying the interstitial sites in the FePt lattice.

show abstract

Section: Resultscontrasting

confidence: 58%

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers

Lin¹,

Chiu²,

Sun

et al. 2009

jjap

Self Cite

View full text Add to dashboard Cite

show abstract

2.3.2.2 FePt-based heterocomposites

Djéga‐Mariadassou

2015

Nanocrystalline Materials, Part B

View full text Add to dashboard Cite

2.3.2.2.3 FePt-based heterocomposites: Magnetic properties and nanostructure

Djéga‐Mariadassou¹

2015

Nanocrystalline Materials, Part B

View full text Add to dashboard Cite

Comparative evaluation of performance of percolated perpendicular media using FePt–MgO/Pt/Cr trilayer and FePt–MgO/MgO bilayer

Cited by 6 publications

References 24 publications

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers

2.3.2.2 FePt-based heterocomposites

2.3.2.2.3 FePt-based heterocomposites: Magnetic properties and nanostructure

Contact Info

Product

Resources

About

Comparative evaluation of performance of percolated perpendicular media using FePt–MgO/Pt/Cr trilayer and FePt–MgO/MgO bilayer

Cited by 6 publications

References 24 publications

Ion-Beam Bombarded SiO2 Layer Effects on the Microstructure and Magnetism in FePt/SiO2 Bilayers

Ion-Beam Bombarded SiO2 Layer Effects on the Microstructure and Magnetism in FePt/SiO2 Bilayers

2.3.2.2 FePt-based heterocomposites

2.3.2.2.3 FePt-based heterocomposites: Magnetic properties and nanostructure

Contact Info

Product

Resources

About

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers

Ion-Beam Bombarded SiO₂ Layer Effects on the Microstructure and Magnetism in FePt/SiO₂ Bilayers