Energy-efficient writing scheme for magnetic domain-wall motion memory

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We present an energy-efficient magnetic domain-writing scheme for domain wall (DW) motion-based memory devices. A cross-shaped nanowire is employed to inject a domain into the nanowire through current-induced DW propagation. The energy required for injecting the magnetic domain is more than one order of magnitude lower than that for the conventional field-based writing scheme. The proposed scheme is beneficial for device miniaturization because the threshold current for DW propagation scales with the device size, which cannot be achieved in the conventional field-based technique.
Publisher
JAPAN SOC APPLIED PHYSICS
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

RACETRACK; DYNAMICS; DRIVEN; TORQUE; SPIN

Citation

APPLIED PHYSICS EXPRESS, v.10, no.4, pp.043002

ISSN
1882-0778
DOI
10.7567/APEX.10.043002
URI
http://hdl.handle.net/10203/228657
Appears in Collection
PH-Journal Papers(저널논문)
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