Faster vortex core switching with lower current density using three-nanocontact spin-polarized currents in a confined structure |
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| Affiliation: | College of Physics, Jilin Normal University, Siping 136000, China |
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| Abstract: | ![]()
We perform micromagnetic simulations on the switching of magnetic vortex core by using spin-polarized currents through a three-nanocontact geometry. Our simulation results show that the current combination with an appropriate current flow direction destroys the symmetry of the total effective energy of the system so that the vortex core can be easier to excite,resulting in less critical current density and a faster switching process. Besides its fundamental significance, our findings provide an additional route to incorporating magnetic vortex phenomena into data storage devices. |
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| Keywords: | magnetic vortex core polarity switching spin-polarized current micromagnetic simulations |
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