Switching magnetic vortex core by a single nanosecond current pulse
arXiv:0808.2858 · doi:10.1063/1.3001588
Abstract
In a ferromagnetic nanodisk, the magnetization tends to swirl around in the plane of the disk and can point either up or down at the center of this magnetic vortex. This binary state can be useful for information storage. It is demonstrated that a single nanosecond current pulse can switch the core polarity. This method also provides the precise control of the core direction, which constitutes fundamental technology for realizing a vortex core memory.
13 pages, 4 figures
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Cited by in corpus (13)
- Magnetic Vortex Core Reversal by Excitation of Spin Waves
- Vortex core switching by coherent excitation with single in-plane magnetic field pulses
- Unidirectional sub-100 ps magnetic vortex core reversal
- Low-amplitude magnetic vortex core reversal by non-linear interference between azimuthal spin waves and the vortex gyromode
- Polarization-selective vortex-core switching by orthogonal Gaussian-pulse currents
- Topological changes of two-dimensional magnetic textures
- Reconfigurable magnetic domain wall pinning at the nano-scale using vortex-generated magnetic fields
- Fast vortex wall motion in wide Permalloy strips from double switching of the vortex core
- Electrical detection of magnetic states in crossed nanowires using the topological Hall effect
- Magnetoresistance in nanostructures: the role of nonuniform current
- Switching of the Magnetic Vortex Core in a Pac-man Disk using a Single Field-Pulse
- Topological textures and their bifurcation processes in 2D ferromagnetic thin films
- Optical Manipulation of Magnetic Vortex Visualized in situ by 4D Electron Microscopy