Magneto-Optical Observation of CPP-GMR Device With Perpendicular Magnetic Anisotropy Driven by Spin Transfer Switching Using Transparent Top Electrode

A new magneto-optical (MO) spatial light modulator (SLM) driven by spin transfer switching (STS) promises the realization of an ultra-high resolution SLM. However, its Kerr rotation angle was inadequate and required improvement using polar Kerr. Gd-Fe film, known as a material for MO disks, has a la...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2010-06, Vol.46 (6), p.1998-2001
Main Authors: Funabashi, N., Aoshima, K., Machida, K., Kuga, K., Ishibashi, T., Shimidzu, N.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Devices
Disks
Electrodes
Exact sciences and technology
Magnetic anisotropy
Magnetic films
Magnetic modulators
Magnetic switching
Magnetism
Magnetooptic devices
Magnetooptic effects
Magnetooptic Kerr effect
Materials science
Nickel
Optical modulation
Other topics in materials science
Perpendicular magnetic anisotropy
Physics
Sociotechnical systems
Spatial light modulators
Spatial resolution
spin transfer switching
Switching
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Summary:A new magneto-optical (MO) spatial light modulator (SLM) driven by spin transfer switching (STS) promises the realization of an ultra-high resolution SLM. However, its Kerr rotation angle was inadequate and required improvement using polar Kerr. Gd-Fe film, known as a material for MO disks, has a large MO effect. In this study, we applied a composite film with a Gd-Fe layer and multiple Co/Ni layers for a free layer of a CPP-GMR device. We fabricated a CPP-GMR device with perpendicular magnetic anisotropy and succeeded in magneto-optical observations driven by STS using a transparent top electrode.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2010.2042287