3-D Architectural Approach for Manipulation of the Micromagnetic Configuration in Nanodisks

Stebliy, Maxim E.; Ognev, A. V.; Samardak, Alexander S.; Diga, K S; Chebotkevich, L. A.

doi:10.1109/tmag.2012.2196269

Cited by 11 publications

(10 citation statements)

References 5 publications

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“…Previous experimental studies showed that when SD þ SD and SD þ V states are combined in disks, the difference between MR ratios was 0.15%. 20 As we have shown above, in the case of magnetization reversal under an influence of a pulsed field, d þ D system have three possible states ( Fig. 3(b)).…”

mentioning

confidence: 79%

High-frequency switching of magnetic bistability in an asymmetric double disk nanostructure

Stebliy

Samardak

Chebotkevich

et al. 2014

Applied Physics Letters

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We propose a magnetoresistive memory cell on the basis of the three dimensional nanostructure “small disk on big disk” possessing the three stable configurations of magnetization. Magnetic behavior of magnetostatically interacting nanodisks under an impact of the high frequency excitation has been studied by means of micromagnetic simulation. The movement of a vortex core in the big disk can induce a change in magnetization configuration in the small one. We prove that magnetic state variation in the double disk nanostructure can be registered by the transverse magnetoresistance measurement.

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mentioning

confidence: 79%

High-frequency switching of magnetic bistability in an asymmetric double disk nanostructure

Stebliy

Samardak

Chebotkevich

et al. 2014

Applied Physics Letters

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“…Thus, when the field H is directed at φ ≈ 90°, the vortex nucleates only under the small disk, and the orientation of the single-domain state in the small disk and the vortex chirality in the big disk depend on the direction of the external magnetic field [8]. …”

Section: Resultsmentioning

confidence: 99%

“…Recently, by using magnetic force microscopy (MFM), we have demonstrated a reliable method to control the vortex parameters in a big disk if a disk with smaller diameter is placed on its top [8]. In this paper, we present results of the impact of the small disk position relative to a symmetry axis of the “small disk on big disk” nanostructure.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry

Stebliy

Kolesnikov

Chebotkevich

2015

Beilstein J. Nanotechnol.

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SummaryMagnetic nanostructures in the form of a sandwich consisting of two permalloy (Py) disks with diameters of 600 and 200 nm separated by a nonmagnetic interlayer are studied. Magnetization reversal of the disk-on-disk nanostructures depends on the distance between centers of the small and big disks and on orientation of an external magnetic field applied during measurements. It is found that manipulation of the magnetic vortex chirality and the trajectory of the vortex core in the big disk is only possible in asymmetric nanostructures. Experimentally studied peculiarities of a motion path of the vortex core and vortex parameters by the magneto-optical Kerr effect (MOKE) magnetometer are supported by the magnetic force microscopy imaging and micromagnetic simulations.

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“…Thus, when the field H is directed at φ ≈ 90°, the vortex nucleates only under the small disk, and the orientation of the singledomain state in the small disk and the vortex chirality in the big disk depend on the direction of the external magnetic field [8].…”

Section: Remagnetization In Magnetic Field At φ ≈ 90°lmentioning

confidence: 99%

Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry

Stebliy¹,

Kolesnikov²,

Ognev³

et al. 2016

Nano Online

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Magnetic nanostructures in the form of a sandwich consisting of two permalloy (Py) disks with diameters of 600 and 200 nm separated by a nonmagnetic interlayer are studied. Magnetization reversal of the disk-on-disk nanostructures depends on the distance between centers of the small and big disks and on orientation of an external magnetic field applied during measurements. It is found that manipulation of the magnetic vortex chirality and the trajectory of the vortex core in the big disk is only possible in asymmetric nanostructures. Experimentally studied peculiarities of a motion path of the vortex core and vortex parameters by the magneto-optical Kerr effect (MOKE) magnetometer are supported by the magnetic force microscopy imaging and micromagnetic simulations.

show abstract

3-D Architectural Approach for Manipulation of the Micromagnetic Configuration in Nanodisks

Cited by 11 publications

References 5 publications

High-frequency switching of magnetic bistability in an asymmetric double disk nanostructure

High-frequency switching of magnetic bistability in an asymmetric double disk nanostructure

Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry

Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry

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