Search Results - "León, Alejandro O"

Spin-transfer-driven nano-oscillators are equivalent to parametric resonators by León, Alejandro O., Clerc, Marcel G.

“…The equivalence between different physical systems permits us to transfer knowledge between them and to characterize the universal nature of their dynamics. We…”
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Dissipative structures induced by spin-transfer torques in nanopillars by León, Alejandro O, Clerc, Marcel G, Coulibaly, Saliya

“…Macroscopic magnetic systems subjected to external forcing exhibit complex spatiotemporal behaviors as result of dissipative self-organization. Pattern…”
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Traveling pulse on a periodic background in parametrically driven systems by León, Alejandro O, Clerc, Marcel G, Coulibaly, Saliya

“…Macroscopic systems with dissipation and time-modulated injection of energy, parametrically driven systems, can self-organize into localized states and/or…”
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Alternating spin-polarized current induces parametric resonance in spin valves by Clerc, Marcel G., Coulibaly, Saliya, Laroze, David, León, Alejandro O., Núñez, Álvaro S.

“…Ferromagnetic systems under the influence of spin-polarized currents exhibit rich spatiotemporal dynamics at nanoscales. We study spin-transfer…”
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Voltage-control of damping constant in magnetic-insulator/topological-insulator bilayers by Chiba, Takahiro, Leon, Alejandro O., Komine, Takashi

“…The magnetic damping constant is a critical parameter for magnetization dynamics and the efficiency of memory devices and magnon transport. Therefore, its…”
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Voltage Control of Rare-Earth Magnetic Moments at the Magnetic-Insulator-Metal Interface by Leon, Alejandro O, Cahaya, Adam B, Bauer, Gerrit E W

“…The large spin-orbit interaction in the lanthanides implies a strong coupling between their internal charge and spin degrees of freedom. We formulate the…”
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Harnessing Interlayer Magnetic Coupling for Efficient, Field‐Free Current‐Induced Magnetization Switching in a Magnetic Insulator by Wang, Leran, Leon, Alejandro O., He, Wenqing, Liang, Zhongyu, Li, Xiaohan, Fang, Xiaoxiao, Yang, Wenyun, Peng, Licong, Yang, Jinbo, Wan, Caihua, Bauer, Gerrit E. W., Luo, Zhaochu

“…Owing to the unique features of low Gilbert damping, long spin‐diffusion lengths, and zero Ohmic losses, magnetic insulators are promising candidate materials…”
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Chaotic patterns and localized states in spin valves by Cabanas, Ana. M., Clerc, Marcel G., Laroze, David, Leon, Alejandro O.

“…•Magnetization dynamics.•Nonlinear dynamics and chaos.•Complex systems. Driven nano-magnets have attracted increasing attention due to their potential…”
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Self-organization in the one-dimensional Landau–Lifshitz–Gilbert–Slonczewski equation with non-uniform anisotropy fields by García-Ñustes, Mónica A., Humire, Fernando R., Leon, Alejandro O.

“…•In magnetic films driven by spin-polarized currents, the perpendicular-to-plane anisotropy is equivalent to a parametric pumping.•A space-dependent anisotropy…”
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Magnetic chimeras in voltage-driven nano-oscillators by Contreras-Celada, Susana, Rojas, René G., Coulibaly, Saliya, Clerc, Marcel G., Leon, Alejandro O.

“…The emergence of spatiotemporal coherence is ubiquitous in nature. Intriguingly, in systems with uniform energy injection and dissipation mechanisms, coherent…”
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Faraday kinks connecting parametric waves in magnetic wires by Leon, Alejandro O., Berríos-Caro, Ernesto, León, Alejandra, Clerc, Marcel G.

“…Kinks are domain walls connecting symmetric equilibria and emerge in several branches of science. Here, we report topological kinks connecting Faraday-type…”
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Voltage-driven multistability and chaos in magnetic films by Contreras-Celada, Susana, Clerc, Marcel G., Coulibaly, Saliya, Rojas, René G., Leon, Alejandro O.

“…The control of magnetization dynamics has allowed numerous technological applications. Magnetization dynamics can be excited by, e.g., alternating magnetic…”
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Alternating superlattice textures in driven nanomagnets by Leon, Alejandro O., Laroze, David, Clerc, Marcel G., Cabanas, Ana M.

“…•Alternating patterns are spatiotemporal self-organized structures.•Alternating patterns are studied in driven magnetic media.•A numerical characterization of…”
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Dzyaloshinskii-Moriya spin density by skew scattering by Cahaya, Adam B, Leon, Alejandro O

“…Phys. Rev. B 106, L100408 (2022) Anisotropic exchange couplings, such as the Dzyaloshinskii-Moriya interaction (DMI), have played a vital role in the formation…”
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Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions by Cahaya, Adam B, Leon, Alejandro O, Fauzi, Mohammad H

“…Nanotechnology 34 (2023) 505001 Spin-transfer and spin-orbit torques allow controlling magnetic degrees of freedom in various materials and devices. However,…”
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Voltage-control of damping constant in magnetic-insulator/topological-insulator bilayers by Chiba, Takahiro, Leon, Alejandro O, Komine, Takashi

“…Appl. Phys. Lett. 118, 252402 (2021) The magnetic damping constant is a critical parameter for magnetization dynamics and the efficiency of memory devices and…”
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Self-organization in the one-dimensional Landau-Lifshitz-Gilbert-Slonczewski equation with non-uniform anisotropy fields by García-Ñustes, Mónica A, Humire, Fernando R, Leon, Alejandro O

“…In magnetic films driven by spin-polarized currents, the perpendicular-to-plane anisotropy is equivalent to breaking the time translation symmetry, i.e., to a…”
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Harnessing Interlayer Magnetic Coupling for Efficient, Field-Free Current-Induced Magnetization Switching in a Magnetic Insulator by Wang, Leran, Leon, Alejandro O, He, Wenqing, Liang, Zhongyu, Li, Xiaohan, Fang, Xiaoxiao, Yang, Wenyun, Peng, Licong, Yang, Jinbo, Wan, Caihua, Bauer, Gerrit E. W, Luo, Zhaochu

“…Owing to the unique features of low Gilbert damping, long spin-diffusion lengths and zero Ohmic losses, magnetic insulators are promising candidate materials…”
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Voltage- and temperature-dependent rare-earth dopant contribution to the interfacial magnetic anisotropy by Leon, Alejandro O, Bauer, Gerrit E. W

“…J. Phys.: Condens. Matter 32,404004 (2020) The control of magnetic materials and devices by voltages without electric currents holds the promise of…”
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Equilibrium current vortices in rare-earth-doped simple metals by Cahaya, Adam B, Leon, Alejandro O, Aliabad, Mojtaba Rahimi, Bauer, Gerrit E. W

“…Phys. Rev. B 103, 064433 (2021) Dilute alloys of rare earths have played a vital role in understanding magnetic phenomena. Here, we model the ground state of…”
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