FIB in Spintronics

Spintronics (or Magnetoelectronics) is a branch of electronics which uses the spin of the electron in addition to its charge and has a huge application potential in sensors, non-volatile high-density data storage and magnetic-logic circuits. Spintronic nanodevices like e.g. MRAMs and racetrack memories are new kind of chips under development with high data density that would also be simpler, smaller, more reliable, faster and less energy-consuming.

The LYRA FIB-SEM system focused ion beam (FIB) milling and focused ion beam induced deposition (FIB-CVD, FIBID) has been used to fabricate a prototype magnetic nanostructures from sputter deposited magnetic layers and multilayers (thicknesses 5-50 nm) on a silicon substrate.

Fig: FIB milled (Permalloy/Cu/Co) nanowire of 200 nm width and 16 μm length with FIB-deposited platinum electric contacts used for the study of domain-wall motion (top image).
 

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