Skyrmion pinning by disk-shaped defects
Webb26 aug. 2024 · The performance of skyrmion-based spintronic devices can be greatly affected by the presence of defects in the materials. Here we develop an analytic model … Webb30 nov. 2024 · The driven skyrmion occasionally generates dislocations or topological defects in the background lattice, so the motion is not strictly periodic but exhibits a combination of periodic motion with intermittent large bursts.
Skyrmion pinning by disk-shaped defects
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WebbHere, we consider skyrmion pinning by various types of disks. Among other findings, we clarify that, in terms of pinning position and pinning potential landscape, one needs to …
WebbIn case a skyrmion is pinned by a local energy minimum, thermal agitation can depin the skyrmion, and the pinning lifetime follows an Arrhenius law. Interestingly, when the disk … Webb6 juni 2024 · Abstract. A key issue for skyrmion dynamics and devices are pinning effects present in real systems. While posing a challenge for the realization of conventional …
WebbIt is shown that skyrmion race track memory can only work if the track width is much greater than four times the skyrmion radius, and the spatial size of defects that can pin a skyrmion is small compared to its own size. Otherwise, the skyrmion will annihilate instead of moving under the action of the spin-polarized current. WebbSuch shape changes are powered by the self-organized flows and stresses of their intracellular filaments and motor proteins. Analogously, we will realise microrobots that each consist of a swarm of active particles: each microrobot will have a liquid body containing self-propelled particles and different sensitive particles; moreover, the …
Webb29 mars 2024 · In case a skyrmion is pinned by a local energy minimum, thermal agitation can depin the skyrmion, and the pinning lifetime follows an Arrhenius law. Interestingly, …
Webb30 juli 2024 · In case a skyrmion is pinned by a local energy minimum, thermal agitation can depin the skyrmion, and the pinning lifetime follows an Arrhenius law. Interestingly, … towneplace suites saskatoonWebb13 jan. 2024 · The authors found that increasing the defect size not only increases both nucleation and annihilation barriers, favoring both formation and destruction of the … towneplace suites savannah ga airportWebb1 mars 2024 · In case a skyrmion is pinned by a local energy minimum, thermal agitation can depin the skyrmion, and the pinning lifetime follows an Arrhenius law. Interestingly, … towneplace suites seattle everett mukilteoWebb11 jan. 2024 · By comparing with the skyrmion preferred position which is in the nanodisk center without defects, we identify the pinning strength and skyrmion preferred … towneplace suites san diego airport libertyWebbSolid curves are the numerical integrations of Eq. (4), with constant R = 19.57 nm, w = 4.84 nm for (a-c) and R = 4.10 nm, w = 3.44 nm for (d-f). The open squares and triangles are … towneplace suites seattle southcenterWebb5 jan. 2016 · Depending on the mechanism, defects attracting 30,33-36 and repelling 33-36 the skyrmion center or even exhibiting a combined … towneplace suites sidney ohWebb30 nov. 2024 · In the absence of pinning, the driven skyrmion can more readily create exchanges of neighbors in the background skyrmions, generating longer range … towneplace suites seaworld