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Results of investigations of ferromagnetic nanostructures enclosing the monolayer ferromagnetic nanodisks of various forms as well as multilayer ferromagnetic nanomagnets are presented. Methods of magnetic force microscopy were applied to observe magnetic states in such nanosystems. We have produced the spin-valve elements on the basis of CoFe/AlOx/CoFe, which perform the 10% alteration of the effect...
The magneto-transport properties of ferromagnetic based multilayers are dependent on the film thickness, the surface roughness, the nature of the interlayer and pining layer used for exchange biasing. We investigate how the nature of the spacer-layer affects the magnetoresistance and Hall effect properties of the magnetic multilayers. The effective thicknesses of the oxide layers were estimated by...
Cross-strip magnetic tunnel junctions (MTJs) were fabricated following this sequence: Si(100)/Ta(30 A)/Co(75 A)/AlOx(deltato)/Co (75 A)/ IrMn(90 A)/Ta(100 A) was deposited under an in-plane deposition field (h) = 500 Oe, where deltato = 12, 17, 22, and 26, and 30 A was the thickness of the AlO x layer. Tunneling magnetoresistance (TMR) rose initially from 21% to 36% and then fell to 24% as deltato...
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