Domain wall propagation in magnetic nanowires by spin-polarized current injection
By N. Vernier, D. Allwood, D. Atkinson, M. Cooke, R. Cowburn. 2003
301 citations recorded by the source corpus.
We demonstrate movement of a head-to-head domain wall through a magnetic nanowire of permalloy (Ni81Fe19) simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude of the electrical current and allows direct propagation of domain walls through complex nanowire shapes, contrary to the case of magnetic-field–induced propagation. The efficiency of this mechanism has been evaluated and the effective force acting on the wall has been found equal to 0.44 × 10−9 N A−1.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/a6445f0125f9fe2fc6f5ea1198dfc2ac5257ad2f
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In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Spin-polarised currents and magnetic domain walls (2005, background): “) However, when simulating the use of current density alone to move a wall, no wall motion was found below a critical value of u 1⁄4 600m/s, corresponding to a current density of 6:85 10(12) A/m(2), far higher than in the experiment, where the results give the critical value of u as 20m/s for P 1⁄4 ”