External current as a coupler between the spin-vortex-induced loop current qubits
نویسندگان
چکیده
منابع مشابه
Spin-transfer torque and current-induced vortex superlattices in nanomagnets
Influence of the spin-transfer torque on the vortex state magnetic nanodisk is studied numerically via the Slonczewski-Berger mechanism. The existence of a critical current is determined for the case of same-directed electrical current, its spin polarization, and the polarity of the vortex. The critical current separates two regimes: (i) deformed but static vortex state and (ii) essentially dyn...
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Time-resolved soft x-ray transmission microscopy is applied to image the current-induced resonant dynamics of the magnetic vortex core realized in a micron sized Permalloy disk. The high spatial resolution better than 25 nm enables us to observe the resonant motion of the vortex core. The result also provides the spin polarization of the current to be 0.67+/-0.16 for Permalloy by fitting the ex...
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We study vortex pattern formation in thin ferromagnetic films under the action of strong spin-polarized currents. Considering the currents which are polarized along the normal of the film plane, we determine the critical current above which the film goes to a saturated state with all magnetic moments being perpendicular to the film plane. We show that stable square vortex-antivortex superlattic...
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ژورنال
عنوان ژورنال: Journal of Physics Communications
سال: 2017
ISSN: 2399-6528
DOI: 10.1088/2399-6528/aa98ff