Field programmable logic gates using GMR devices

Magnetoresistive logic and biochip

“…The vision is to build up a field programmable gate array (FPGA) based on spin logic gates consisting of magnetic tunnel junctions (MTJs) [4]. There are at least three different approaches to realize it: the comparative logic, the currentsteered logic and the multivalent logic (or memory).…”

Arrays of magnetic tunnelling junctions for field programmable logic gates

“…Additionally, programmable logic gates can be built by combining these elements with standard semiconductor components [1][2][3]. Because logic and programming operation in these gates are essentially the same, fast reconfigurable computing [4] can be performed with this logic device.…”

“…The feasibility of one concept [1] for a field programmable spin logic has been shown by realising a working three-input gate of six sub-micrometer SDT elements with a CoFe/Ru/CoFe artificial antiferromagnet (AAF) pinned by an antiferromagnetic IrMn layer [5].…”

Spin-Transfer-Torque Driven Magneto-Logic Gates Using Nano Spin-Valve Pillars

“…Apart from the more obvious application as plain memory storage devices, spin valve based magneto-logic devices have also been attempted in the recent past. FIMS based field programmable logic gates using GMR elements were proposed by Hassoun et al [10], wherein the type of the logical operation to be performed can be altered by additional fields. Further models have also been suggested where the logical state of the GMR unit is manipulated using FIMS [11][12][13][14][15].…”