Search Results - "Zaspel, C.E."

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

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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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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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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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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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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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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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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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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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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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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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Vortex energies in the two-dimensional easy-plane ferromagnet by Zaspel, C.E., Godinez, D.

“…In the core region of a planar vortex in the two-dimensional Heisenberg model, the continuum approximation breaks down and a cut-off radius must be introduced…”
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Power dependent velocities of microwave envelope solitons [in YIG films] by Yashiro, K., Ohkawa, S., Zaspel, C.E.

“…Microwave envelope solitons propagating in magnetic thin films experience both linear and nonlinear dispersive effects. The nonlinear dispersive effects lead…”
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Vortex Patterns in Layered Magnets with Nonmagnetic and Magnetic Impurities by Bogdan, M.M., Zaspel, C.E.

“…Effects of a single‐atom impurity on a small vortex‐like soliton are studied in the two‐dimensional (2D) Heisenberg model of layered magnets. In the 41 × 41…”
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Dark spin wave envelope solitons in the model with nonlinear dispersion by Lihong Li, Yashiro, K., Ohkawa, S., Zaspel, C.E., Slavin, A.N.

“…Spin wave envelope solitons in a magnetic thin film are modeled by the nonlinear Schroedinger equation. Recent experimental observations of dark solitons in…”
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Multi-soliton formation from a single narrow pulse in ferrite film by Rapoport, Yu.G., Zaspel, C.E., Mantha, J.H., Grimalsky, V.V.

“…Summary form only given. Magnetostatic waves propagating in yttrium iron garnet (YIG) thin films are modeled by the nonlinear Schroedinger (NLS) equation…”
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Power dependent velocities of microwave envelope solitons by Yashiro, K., Ohkawa, S., Zaspel, C.E.

“…Magnetostatic waves propagating in magnetic thin films have a dispersion relation that m general depends on both the wavenumber and the wave amplitude. This…”
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Velocities of microwave magnetic envelope solitons in thin films by Zaspel, C.E., Kabos, P., Patton, C.E., Xia, H., Zhang, H.Y.

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Nonlinear Lorenz lemma with the influence of exchange interaction and propagation of the magnetostatic waves with higher diffraction and dispersion by Rapoport, Y.G., Zaspel, C.E., Grimalsky, V.V., Sanchez-Mondragon, J.

“…An efficient method (nonlinear Lorenz lemma) for the derivation of a reduced 2D evolution equation for the nonlinear magnetostatic waves in ferrite films is…”
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