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A robust soliton ratchet using combined antiferromagnetic and ferromagnetic interlayer couplings
- Source :
- Applied Physics Letters, 106. American Institute of Physics
- Publication Year :
- 2015
- Publisher :
- AIP Publishing, 2015.
-
Abstract
- A sharp magnetic soliton can be created and propagated in a vertical ratchet structure based on magnetic layers with out-of-plane anisotropy using a combination of antiferromagnetic and ferromagnetic interlayer couplings. This allows the use of identical magnetic layers in the stack, which simplifies the implementation of the ratchet compared to schemes which use alternating layer thicknesses. The ratchet behavior is analyzed using an Ising-macrospin approximation and conditions are derived for the propagation of a soliton, which is demonstrated experimentally. Values extracted from the experimental data for the coercivities and interlayer couplings show significant variation, which demonstrates the robustness of the soliton propagation.
- Subjects :
- Materials science
Coercive force
Physics and Astronomy (miscellaneous)
Condensed matter physics
Ratchet
Magnetic films
02 engineering and technology
Coercivity
021001 nanoscience & nanotechnology
01 natural sciences
Magnetic anisotropy
Antiferromagnetism
Ferromagnetism
0103 physical sciences
Ising model
Ferromagnetic materials
Soliton
010306 general physics
0210 nano-technology
Anisotropy
Magnetic materials
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters, 106. American Institute of Physics
- Accession number :
- edsair.doi.dedup.....8ab1972c6d852ae63907f9d76733b065