Search Results - "Zaspel, C. E"

Excitation of spin dynamics by spin-polarized current in vortex state magnetic disks by Ivanov, B A, Zaspel, C E

“…A spin-polarized current with the polarization direction perpendicular to a disk in the vortex ground state will result in renormalization of the effective…”
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Magnon modes for thin circular vortex-state magnetic dots by Ivanov, B. A., Zaspel, C. E.

“…The magnetization in a magnetic microdot made from soft magnetic materials can have a vortex-like ground-state structure resulting from competition between the…”
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Antivortex gyrotropic motion in a nanocontact by Zaspel, C.E.

“…A vortex–antivortex pair can form in the free layer of a nanocontact device as a result of the Oersted field produced by the current. In a large-scale free…”
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Synchronization in linear chains of non-identical vortex-based spin-torque oscillators by Zaspel, C.E.

“…•Chains of non-identical (random radius) spin torque oscillators can synchronize through the dipolar interaction.•High current densities and large separation…”
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Synchronization in alternating linear chains of vortex-based spin-torque oscillators by Zaspel, C.E.

“…•Linear chains of alternating non-identical spin-torque oscillators can synchronize.•The onset of synchronization depends on the individual oscillator radius…”
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Limiting Velocity and Dispersion Law of Domain Walls in Ferrimagnets Close to the Spin Compensation Point by Galkina, E. G., Zaspel, C. E., Ivanov, B. A., Kulagin, N. E., Lerman, L. M.

“…The motion of domain walls in GdFeCo-type ferrimagnets near the point of compensation of sublattice spins s 1 and s 2 , when the effects of the exchange…”
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Vortex precession in thin elliptical ferromagnetic nanodisks by Zaspel, C.E.

“…•A general form for the magnetostatic energy is calculated for the vortex state in a ferromagnetic ellipse.•The ellipse magnetostatic energy is minimized by…”
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Magnon modes in permalloy nanorings by Zaspel, C.E., Ivanov, B.A.

“…Submicron permalloy rings can have a vortex ground state as a result of the competing effects arising from the exchange and magnetostatic interactions. The…”
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Optical Solitary Wave and Shock Solutions of the Higher Order Nonlinear Schrödinger Equation by Zaspel, C. E.

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Phase locking of vortex-based spin-torque nanocontact oscillators by antivortices by Zaspel, C. E.

“…Magnetic vortices formed at a nanocontact undergo gyrotropic oscillations when driven by a spin-torque providing potential applications as microwave…”
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Collective modes for an array of magnetic dots in the vortex state by Galkin, A. Yu, Ivanov, B. A., Zaspel, C. E.

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Synchronization of vortex-based spin torque nano-oscillators by magnetostatic coupling by Zaspel, C.E.

“…Synchronization of two nanopillar oscillators driven by spin torque and coupled through the magnetic dipolar interaction. The dominant mode in each oscillator…”
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Frequencies of Radially Symmetric Excitations in Vortex State Disks by Zaspel, C.E., Galkin, A.Yu, Ivanov, B.A.

“…Submicron ferromagnetic disks with a vortex ground state exhibit interesting and potentially useful dynamic properties arising from excitations on the ground…”
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Collective magnon modes for magnetic dot arrays by Galkin, A.Yu, Ivanov, B.A., Zaspel, C.E.

“…Both static and dynamic properties of the magnetic dot array with the uniform in-plane magnetization with the most symmetric configuration (round dots placed…”
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Finite energy solitons in highly anisotropic two dimensional ferromagnets by Ivanov, B. A., Merkulov, A. Yu, Stephanovich, V. A., Zaspel, C. E.

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Small Impurity-Pinned Solitons in Layered Antiferromagnets by Zaspel, C.E., Drumheller, J.E., Subbaraman, K.

“…Layered manganese‐halide compounds exhibit quasi‐two‐dimensional magnetic behavior in the temperature region immediately above the ordering temperature where…”
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Multisoliton formation from a single narrow pulse in ferrite films by Rapoport, Yu.G., Zaspel, C.E., Mantha, J.H., Grimalsky, V.V.

“…The formation of solitons in ferrite films is modeled by a nonlinear Schroedinger equation, and numerical solution will indicate how multisoliton pulses form…”
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High frequency modes in vortex-state nanomagnets by IVANOV, B. A, ZASPEL, C. E

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Effect of the Oersted field on the dynamics of magnetic drop solitons formed at a nanocontact by Zaspel, C.E.

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Shock formation in magnetic thin films by Zaspel, C.E., Rapoport, Yu.G., Yashiro, K., Ohkawa, S.

“…Envelope pulses modeled by a nonlinear Schroedinger equation can exhibit shock formation. This effect occurs when third order linear dispersion and nonlinear…”
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