Search Results - "Demokritov, S. O."

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…”
Get full text

Full control of the spin-wave damping in a magnetic insulator using spin-orbit torque by Hamadeh, A, d'Allivy Kelly, O, Hahn, C, Meley, H, Bernard, R, Molpeceres, A H, Naletov, V V, Viret, M, Anane, A, Cros, V, Demokritov, S O, Prieto, J L, Muñoz, M, de Loubens, G, Klein, O

“…It is demonstrated that the threshold current for damping compensation can be reached in a 5  μm diameter YIG(20  nm)|Pt(7  nm) disk. The demonstration rests…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

Magnon BEC at Room Temperature and Its Spatio-Temporal Dynamics by Demokritov, S. O.

“…Recent advances in the studies of magnon gases have opened new horizons for the investigation of room-temperature macroscopic coherent states and discovery of…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

Nanomagnonic devices based on the spin-transfer torque by Urazhdin, S., Demidov, V. E., Ulrichs, H., Kendziorczyk, T., Kuhn, T., Leuthold, J., Wilde, G., Demokritov, S. O.

“…Magnonic nano-waveguides created by dipolar fields enable efficient coupling and transmission of spin waves generated by spin-torque nano-oscillators…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

Observation of spontaneous coherence in Bose-Einstein condensate of magnons by Demidov, V E, Dzyapko, O, Demokritov, S O, Melkov, G A, Slavin, A N

“…The room-temperature dynamics of a magnon gas driven by short microwave pumping pulses is studied. An overpopulation of the lowest energy level of the system…”
Get full text

Nanomagnonic devices based on the spin-transfer torque by Urazhdin, S., Demidov, V. E., Ulrichs, H., Kendziorczyk, T., Kuhn, T., Leuthold, J., Wilde, G., Demokritov, S. O.

Get full text

Thermalization of a parametrically driven magnon gas leading to Bose-Einstein condensation by Demidov, V E, Dzyapko, O, Demokritov, S O, Melkov, G A, Slavin, A N

“…The thermalization of parametrically pumped magnons caused by nonlinear multimagnon scattering processes and leading to the magnon Bose-Einstein condensation…”
Get full text