Search Results - "Demidov, V. E."

Generation of coherent spin-wave modes in yttrium iron garnet microdiscs by spin–orbit torque by Collet, M., de Milly, X., d’Allivy Kelly, O., Naletov, V. V., Bernard, R., Bortolotti, P., Ben Youssef, J., Demidov, V. E., Demokritov, S. O., Prieto, J. L., Muñoz, M., Cros, V., Anane, A., de Loubens, G., Klein, O.

“…In recent years, spin–orbit effects have been widely used to produce and detect spin currents in spintronic devices. The peculiar symmetry of the spin Hall…”
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Nanoconstriction-based spin-Hall nano-oscillator by Demidov, V. E., Urazhdin, S., Zholud, A., Sadovnikov, A. V., Demokritov, S. O.

“…We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction…”
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True amplification of spin waves in magnonic nano-waveguides by Merbouche, H., Divinskiy, B., Gouéré, D., Lebrun, R., El Kanj, A., Cros, V., Bortolotti, P., Anane, A., Demokritov, S. O., Demidov, V. E.

“…Magnonic nano-devices exploit magnons - quanta of spin waves - to transmit and process information within a single integrated platform that has the potential…”
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Spin-wave propagation in ultra-thin YIG based waveguides by Collet, M., Gladii, O., Evelt, M., Bessonov, V., Soumah, L., Bortolotti, P., Demokritov, S. O., Henry, Y., Cros, V., Bailleul, M., Demidov, V. E., Anane, A.

“…Spin-wave propagation in microfabricated 20 nm thick, 2.5 μm wide Yttrium Iron Garnet (YIG) waveguides is studied using propagating spin-wave spectroscopy…”
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Resonant generation of propagating second-harmonic spin waves in nano-waveguides by Nikolaev, K. O., Lake, S. R., Schmidt, G., Demokritov, S. O., Demidov, V. E.

“…Generation of second-harmonic waves is one of the universal nonlinear phenomena that have found numerous technical applications in many modern technologies, in…”
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Evidence for spin current driven Bose-Einstein condensation of magnons by Divinskiy, B., Merbouche, H., Demidov, V. E., Nikolaev, K. O., Soumah, L., Gouéré, D., Lebrun, R., Cros, V., Youssef, Jamal Ben, Bortolotti, P., Anane, A., Demokritov, S. O.

“…The quanta of magnetic excitations – magnons – are known for their unique ability to undergo Bose-Einstein condensation at room temperature. This fascinating…”
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Bose-Einstein condensation of quasi-equilibrium magnons at room temperature under pumping by DEMOKRITOV, S. O, DEMIDOV, V. E, DZYAPKO, O, MELKOV, G. A, SERGA, A. A, HILLEBRANDS, B, SLAVIN, A. N

“…Bose-Einstein condensation is one of the most fascinating phenomena predicted by quantum mechanics. It involves the formation of a collective quantum state…”
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Synchronization of spin Hall nano-oscillators to external microwave signals by Demidov, V. E., Ulrichs, H., Gurevich, S. V., Demokritov, S. O., Tiberkevich, V. S., Slavin, A. N., Zholud, A., Urazhdin, S.

“…Recently, a novel type of spin-torque nano-oscillators driven by pure spin current generated via the spin Hall effect was demonstrated. Here we report the…”
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Direct evidence of spatial stability of Bose-Einstein condensate of magnons by Borisenko, I. V., Divinskiy, B., Demidov, V. E., Li, G., Nattermann, T., Pokrovsky, V. L., Demokritov, S. O.

“…Bose-Einstein condensation of magnons is one of few macroscopic quantum phenomena observed at room temperature. Since its discovery, it became an object of…”
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Reconfigurable heat-induced spin wave lenses by Dzyapko, O., Borisenko, I. V., Demidov, V. E., Pernice, W., Demokritov, S. O.

“…We study the control and manipulation of propagating spin waves in yttrium iron garnet films using a local laser-induced heating. We show that, due to the…”
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Chemical potential of quasi-equilibrium magnon gas driven by pure spin current by Demidov, V. E., Urazhdin, S., Divinskiy, B., Bessonov, V. D., Rinkevich, A. B., Ustinov, V. V., Demokritov, S. O.

“…Pure spin currents provide the possibility to control the magnetization state of conducting and insulating magnetic materials. They allow one to increase or…”
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Control of magnetic fluctuations by spin current by Demidov, V E, Urazhdin, S, Edwards, E R J, Stiles, M D, McMichael, R D, Demokritov, S O

“…We use microfocus Brillouin light scattering spectroscopy to study the interaction of spin current with magnetic fluctuations in a Permalloy microdisk located…”
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High-efficiency control of spin-wave propagation in ultra-thin yttrium iron garnet by the spin-orbit torque by Evelt, M., Demidov, V. E., Bessonov, V., Demokritov, S. O., Prieto, J. L., Muñoz, M., Ben Youssef, J., Naletov, V. V., de Loubens, G., Klein, O., Collet, M., Garcia-Hernandez, K., Bortolotti, P., Cros, V., Anane, A.

“…We study experimentally with submicrometer spatial resolution the propagation of spin waves in microscopic waveguides based on the nanometer-thick yttrium iron…”
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Relation between unidirectional spin Hall magnetoresistance and spin current-driven magnon generation by Borisenko, I. V., Demidov, V. E., Urazhdin, S., Rinkevich, A. B., Demokritov, S. O.

“…We perform electrical measurements of unidirectional spin Hall magnetoresistance (USMR) in a Permalloy/Pt bilayer, in conjunction with magneto-optical…”
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Spatial separation of degenerate components of magnon Bose–Einstein condensate by using a local acceleration potential by Borisenko, I. V., Demidov, V. E., Pokrovsky, V. L., Demokritov, S. O.

“…Bose–Einstein condensation (BEC) of magnons is one of the few macroscopic quantum phenomena observable at room temperature. Due to the competition of the…”
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Spin-current nano-oscillator based on nonlocal spin injection by Demidov, V. E., Urazhdin, S., Zholud, A., Sadovnikov, A. V., Slavin, A. N., Demokritov, S. O.

“…Nonlocal spin injection has been recognized as an efficient mechanism for creation of pure spin currents not tied to the electrical charge transfer. Here we…”
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Spin Hall-induced auto-oscillations in ultrathin YIG grown on Pt by Evelt, M., Safranski, C., Aldosary, Mohammed, Demidov, V. E., Barsukov, I., Nosov, A. P., Rinkevich, A. B., Sobotkiewich, K., Li, Xiaoqin, Shi, Jing, Krivorotov, I. N., Demokritov, S. O.

“…We experimentally study nanowire-shaped spin-Hall nano-oscillators based on nanometer-thick epitaxial films of Yttrium Iron Garnet grown on top of a layer of…”
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Route toward high-speed nano-magnonics provided by pure spin currents by Divinskiy, B., Demidov, V. E., Demokritov, S. O., Rinkevich, A. B., Urazhdin, S.

“…We study experimentally the possibility to utilize pulses of pure spin current, produced via the nonlocal spin injection mechanism, to generate short packets…”
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Giant nonlinear self-phase modulation of large-amplitude spin waves in microscopic YIG waveguides by Merbouche, H., Divinskiy, B., Nikolaev, K. O., Kaspar, C., Pernice, W. H. P., Gouéré, D., Lebrun, R., Cros, V., Ben Youssef, J., Bortolotti, P., Anane, A., Demokritov, S. O., Demidov, V. E.

“…Nonlinear self-phase modulation is a universal phenomenon responsible, for example, for the formation of propagating dynamic solitons. It has been reported for…”
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Spatially non-uniform ground state and quantized vortices in a two-component Bose-Einstein condensate of magnons by Nowik-Boltyk, P., Dzyapko, O., Demidov, V. E., Berloff, N. G., Demokritov, S. O.

“…A gas of magnons in magnetic films differs from all other known systems demonstrating Bose-Einstein condensation (BEC), since it possesses two energetically…”
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