Soliton propagation in micron-sized magnetic ratchet elements

Abstract

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Intra-wire coupling in segmented Ni/Cu nanowires deposited by electrodeposition

“…Therefore, the use of the third dimension is an appealing approach. Studies on alternating, vertical stacks of magnetic and non-magnetic materials have already been published, in which a three dimensional shift register is investigated, that is capable of storing and shifting several bits of information as solitons within a single column [15][16][17][18][19]. These shift registers are coupled via RKKY interaction and its oscillatory nature allows for an additional degree of freedom in the design of the device, but as a drawback the samples are very demanding with regard to sample quality and purity.…”

Three-dimensional nanomagnetism

“…The aforementioned results refer to studies in extended films. Future studies are expected in laterally patterned nanostructures, to investigate the effect of rotating fields and dipolar interactions on the domain formation and soliton operation 71 72 . The use of different mechanisms for propagation, such as spin-transfer torque 73 , microwave excitations 74 or all optical switching 75 , are also anticipated.…”

Magnetic Properties and Interfacial Anisotropies of Pt/Co/AlOxPerpendicularly Magnetized Thin Films

“…Since these effects are current driven, both the heavy metal underlayers as well as the metal/oxide heterointerfaces need to be optimized [7]. Switching of magnetic layers via current may also provide a way of injecting data into nanomagnetic logic schemes, which are driven by magnetic field or current pulses [8,9,10]. The separation of the injection of data from the means of controlling the logic gates themselves is advantageous because it leads to larger device operating margins.…”