Optimizing Dual-Layer Recording Using Antiferromagnetic Exchange Coupling

Optimizing Dual-Layer Recording Using Antiferromagnetic Exchange Coupling

Selective recording on media with two discrete recording layers is complicated by magnetostatic interactions between the layers. Introducing antiferromagnetic exchange coupling can compensate for these interactions to some extent. This paper investigates the effect of the antiferromagnetic exchange...

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Veröffentlicht in:IEEE transactions on magnetics 2018-11, Vol.54 (11), p.1-5
Hauptverfasser: Greaves, Simon John, Kikuchi, Tadahiro, Kanai, Yasushi, Muraoka, Hiroaki
Format: Artikel
Sprache:eng
Schlagworte:
Antiferromagnetic coupling
Antiferromagnetism
Coupling
Couplings
dual-layer recording
Exchanging
Magnetic heads
Magnetic recording
Magnetic resonance
Magnetism
Magnetization
Magnetostatics
microwave-assisted magnetic recording
Recording
simulation
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Beschreibung
Zusammenfassung:Selective recording on media with two discrete recording layers is complicated by magnetostatic interactions between the layers. Introducing antiferromagnetic exchange coupling can compensate for these interactions to some extent. This paper investigates the effect of the antiferromagnetic exchange coupling strength in a dual-layer medium and shows that the recording performance can be improved when the antiferromagnetic exchange coupling is optimized.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2018.2829509