Programmable Skyrmion Logic Gates Based on Skyrmion Tunneling

Magnetic skyrmions are promising candidates as elementary nanoscale bits in logic-in-memory devices, intrinsically merging high density memory and computing capabilities. Here we exploit the dynamics of interacting with anisotropy energy barriers patterned by ion irradiation to design programmable logic gates. Using micromagnetic simulations experimental parameters, show that a fine tuning barrier height width allows selective tunneling between parallel nanotracks triggered skyrmion-skyrmion interaction. This can be leveraged skyrmion De-multiplexer (DMux) gate which works solely using inputs. By cascading connecting demultiplexer gates specific topology, develop fully capable producing any possible output sum all minterms generated given set inputs without requiring complex additional electric/magnetic interconversion. The proposed is conservative cascadable paves new pathway for full skyrmionic-based devices.