Regents of University of California Assigned Patent

The Regents of the University of California, Oakland, CA, has been assigned a patent (11,145,805) developed by Liu, Kai, Davis, CA, for “topological spin textures in 3-dimensional magnetic structures.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Utilizing the topological character of patterns in 3D structures is beneficial for information storage, magnetic memory and logic systems. One embodiment describes the use of topological knots, exemplified by a Mobius strip, in which a spin traversing along the band for a complete cycle will recover its original position, while having rotated away from its original orientation. The spins can respond to an external magnetic field, but cannot achieve a ferromagnetic state, in which all magnetic moments are pointing in the same direction, due to the topological knot. 3D assemblies of such nano-Mobius strips may form a prototype secure magnetic information storage device that are secure and with extremely low levels of energy dissipation.”

The patent application was filed on January 24, 2020 (16/752,251).