Structural control of domain wall depinning fields in nanostructured Fe crossbar patterns

Teppei Takashima; Keigo Ito; Kenji Noda; Terumitsu Tanaka; Kimihide Matsuyama

doi:10.1109/TMAG.2011.2146760

Structural control of domain wall depinning fields in nanostructured Fe crossbar patterns

Teppei Takashima, Keigo Ito, Kenji Noda, Terumitsu Tanaka, Kimihide Matsuyama

Electronic Devices

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Domain wall (DW) pinning properties in Fe crossbar junctions with various nominal bar widths (100-380 nm) and film thicknesses (10-30 nm) are studied by magnetic force microscopy observation and micromagnetic simulation. The measured DW depinning fields present the marked bar width dependence as predicted from micromagnetic simulations. Simulation results suggest that the transverse DW is stabilized at the cross junction, and the depinning process is triggered by nonuniform magnetization rotation, taking the temporal buckling configuration.

Original language	English
Article number	6028153
Pages (from-to)	2522-2524
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2146760
Publication status	Published - Oct 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2011.2146760

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abstract = "Domain wall (DW) pinning properties in Fe crossbar junctions with various nominal bar widths (100-380 nm) and film thicknesses (10-30 nm) are studied by magnetic force microscopy observation and micromagnetic simulation. The measured DW depinning fields present the marked bar width dependence as predicted from micromagnetic simulations. Simulation results suggest that the transverse DW is stabilized at the cross junction, and the depinning process is triggered by nonuniform magnetization rotation, taking the temporal buckling configuration.",

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AU - Takashima, Teppei

AU - Ito, Keigo

AU - Noda, Kenji

AU - Tanaka, Terumitsu

AU - Matsuyama, Kimihide

PY - 2011/10

Y1 - 2011/10

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AB - Domain wall (DW) pinning properties in Fe crossbar junctions with various nominal bar widths (100-380 nm) and film thicknesses (10-30 nm) are studied by magnetic force microscopy observation and micromagnetic simulation. The measured DW depinning fields present the marked bar width dependence as predicted from micromagnetic simulations. Simulation results suggest that the transverse DW is stabilized at the cross junction, and the depinning process is triggered by nonuniform magnetization rotation, taking the temporal buckling configuration.

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Structural control of domain wall depinning fields in nanostructured Fe crossbar patterns

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