High Frequency Domain Wall Oscillations in Ferromagnetic Nanowire with a Nanoscale Dzyaloshinskii Moriya Interaction (DMI) Region
arXiv:1906.03844 · doi:10.1016/j.jmmm.2020.166807
Abstract
The Dzyaloshinskii Moriya Interaction (DMI) has laid the foundation for many novel chiral structures such as Skyrmions. In most of the studies so far, the DMI is present in the whole of the magnetic layer. Here, we report our investigations on a ferromagnetic nanowire where DMI is confined to a nanoscale region. We observe that the local modulation of magnetic properties causes oscillation of domain walls under the influence of spin-transfer torque. The oscillation frequency is tunable within a few GHz, making this observation potentially useful for applications in neuromorphic computing.
References in corpus (24)
- The design and verification of Mumax3
- Current-driven dynamics of chiral ferromagnetic domain walls
- Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
- Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
- Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
- Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
- Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
- Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
- Vowel recognition with four coupled spin-torque nano-oscillators
- Asymmetric Magnetic Domain-Wall Motion by the Dzyaloshinskii-Moriya Interaction
- Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly-magnetized Pt/Co/AlO ultrathin films measured by Brillouin light spectroscopy
- Observation of stable Neel skyrmions in Co/Pd multilayers with Lorentz transmission electron microscopy
- Large voltage tuning of Dzyaloshinskii-Moriya Interaction: a route towards dynamic control of skyrmion chirality
- Probing the Dzyaloshinskii-Moriya interaction in CoFeB ultrathin films using domain wall creep and Brillouin light spectroscopy
- Interfacial Dzyaloshinskii-Moriya interaction in Ta\Co20Fe60B20\MgO nanowires
- Very large domain wall velocities in Pt/Co/Gd trilayers with Dzyaloshinskii-Moriya interaction
- Domain wall-based spin-Hall nano-oscillators
- Theory of the Interfacial Dzyaloshinskii-Moriya Interaction in Rashba Antiferromagnets
- Probing the Dzyaloshinskii-Moriya interaction via the propagation of spin waves in ferromagnetic thin films
- Universality of Dzyaloshinskii-Moriya interaction effect over domain-wall creep and flow regimes
- Domain walls and Dzyaloshinskii-Moriya interaction in epitaxial Co/Ir(111) and Pt/Co/Ir(111)
- Controlled spin-torque driven domain wall motion using staggered magnetic nanowires
- Micromagnetic study of skyrmion stability in confined magnetic structures with perpendicular anisotropy
- Spin waves in thin films and magnonic crystals with Dzyaloshinskii-Moriya interactions