Solid-state lithium-ion supercapacitor for voltage control of skyrmions
arXiv:2301.11585 · doi:10.1021/acs.nanolett.2c04731
Abstract
Ionic control of magnetism gives rise to high magneto-electric coupling efficiencies at low voltages, which is essential for low-power magnetism-based non-conventional computing technologies. However, for on-chip applications, magneto-ionic devices typically suffer from slow kinetics, poor cyclability, impractical liquid architectures or strong ambient effects. As a route to overcoming these problems, we demonstrate an LiPON-based solid-state ionic supercapacitor with a magnetic Pt/CoFeB/Pt thin-film electrode which enables voltage control of a magnetic skyrmion state. Skyrmion nucleation and annihilation are caused by Li ion accumulation and depletion at the magnetic interface under an applied voltage. The skyrmion density can be controlled through dc applied fields or through voltage pulses. The skyrmions are nucleated by single 60-s voltage pulses and devices are cycled 750,000 times without loss of electrical performance. Our results demonstrate a simple and robust approach to ionic control of magnetism in spin-based devices.
arXiv comment13 pages, 4 figures
References in corpus (17)
- Magnetic skyrmion artificial synapse for neuromorphic computing
- Magneto-ionic Control of Interfacial Magnetism
- A theory on skyrmion size and profile
- Electric field driven switching of individual magnetic skyrmions
- Thermal skyrmion diffusion applied in probabilistic computing
- Reversible control of Co magnetism by voltage induced oxidation
- Electric-field-driven Non-volatile Multi-state Switching of Individual Skyrmions in a Multiferroic Heterostructure
- Large voltage tuning of Dzyaloshinskii-Moriya Interaction: a route towards dynamic control of skyrmion chirality
- The skyrmion switch: turning magnetic skyrmion bubbles on and off with an electric field
- Reservoir Computing with Random Skyrmion Textures
- Electric field-induced creation and directional motion of domain walls and skyrmion bubbles
- Brownian reservoir computing realized using geometrically confined skyrmions
- Experimental creation and annihilation of nonvolatile magnetic skyrmions using voltage control of magnetic anisotropy without an external magnetic field
- Pattern recognition with neuromorphic computing using magnetic-field induced dynamics of skyrmions
- Gate-controlled skyrmion and domain wall chirality
- Voltage control of skyrmions: creation, annihilation and zero-magnetic field stablization
- Kinetics of ion migration in the electric field-driven manipulation of magnetic anisotropy of Pt/Co/oxide multilayers