Magnetooptical Kerr effect spectra of amorphous gadolinium-cobalt films

Višňovský, Š.; Knappe, B.; Prosser, V.; Müller, H.-R.

doi:10.1002/pssa.2210380160

Cited by 15 publications

(1 citation statement)

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“…However, at low concentration, the exchange interaction from neighbouring Fe and Co atoms dominates over the Nd random anisotropy, thus polar Kerr rotation is larger. [4] Therefore, only appropriate Nd doping can maximize θ K under blue wavelength. The temperature dependence of the saturation magnetization of NdGdFeCo and TbFeCo films are exhibited in Figs.…”

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Novel Bilayer Structures for Short Wavelength High Density Magneto-Optical Data Storage

Wang

et al. 2008

Chinese Phys. Lett.

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We report a novel bi-layer thin film structure for high density magneto-optical (MO) data storage, which combines the advantages of blue wavelength and magnetically induced superresolution (MSR) recording. A double-layer system of exchange-coupled light rare-earth (LRE) element doped NdGdFeCo and traditional TbFeCo is used as the recording medium. The experimental results demonstrate that this NdGdFeCo/TbFeCo double layer has large Kerr rotation under blue wavelength. Centre aperture detection (CAD) MSR effect with temperature rising is also observed. Theoretical calculation is also carried out to verify the experimental results. These results collectively suggest that the new bilayer structure is very promising in next generation high density MO data storage.

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confidence: 99%

Novel Bilayer Structures for Short Wavelength High Density Magneto-Optical Data Storage

Wang

et al. 2008

Chinese Phys. Lett.

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Magneto‐Optical Properties of Metals, Alloys and Compounds

Schoenes

2006

Materials Science and Technology

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Significance and interpretation of magnetic anisotropy measurements in amorphous Gd–Co films

Müller¹,

Keilig²,

Kosicik³

et al. 1978

Phys. Stat. Sol. (a)

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The constant Ku of magnetic uniaxial anisotropy is measured in sputtered amorphous Gd–Co films by different methods. Considerable discrepancies are found between the results of static and of ferromagnetic resonance measurements, especially in the region of magnetic compensation. The reasons for the different results are probably inhomogeneous composition and microstructure of the films and slightly field‐dependent magnetic parameters of amorphous Gd–Co. To get more insight in the origin of Ku in amorphous Gd–Co, measurements in a broad temperature range are performed before and after annealing. The results show clearly two main contributions to Ku. Atomic short range order leads to positive Ku and disappears during annealing. Stresses in the films produce negative Ku at temperatures below the temperature during preparation and are not significantly influenced by annealing.

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Magnetooptical Kerr effect spectra of amorphous gadolinium-cobalt films

Cited by 15 publications

References 7 publications

Novel Bilayer Structures for Short Wavelength High Density Magneto-Optical Data Storage

Novel Bilayer Structures for Short Wavelength High Density Magneto-Optical Data Storage

Magneto‐Optical Properties of Metals, Alloys and Compounds

Significance and interpretation of magnetic anisotropy measurements in amorphous Gd–Co films

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