Search Results - "Chumak, A A"
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1
Spin Pinning and Spin-Wave Dispersion in Nanoscopic Ferromagnetic Waveguides
Published in Physical review letters (21-06-2019)“…Spin waves are investigated in yttrium iron garnet waveguides with a thickness of 39 nm and widths ranging down to 50 nm, i.e., with an aspect ratio thickness…”
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2
Ultra-fast vortex motion in a direct-write Nb-C superconductor
Published in Nature communications (03-07-2020)“…The ultra-fast dynamics of superconducting vortices harbors rich physics generic to nonequilibrium collective systems. The phenomenon of flux-flow instability…”
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3
Magnon spintronics
Published in Nature physics (01-06-2015)“…Magnon spintronics is the field of spintronics concerned with structures, devices and circuits that use spin currents carried by magnons. Magnons are the…”
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4
Controlling the Nonlinear Relaxation of Quantized Propagating Magnons in Nanodevices
Published in Physical review letters (05-03-2021)“…Relaxation of linear magnetization dynamics is well described by the viscous Gilbert damping processes. However, for strong excitations, nonlinear damping…”
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5
Experimental prototype of a spin-wave majority gate
Published in Applied physics letters (10-04-2017)“…Featuring low heat dissipation, devices based on spin-wave logic gates promise to comply with increasing future requirements in information processing. In this…”
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6
Design of a spin-wave majority gate employing mode selection
Published in Applied physics letters (13-10-2014)“…The design of a microstructured, fully functional spin-wave majority gate is presented and studied using micromagnetic simulations. This all-magnon logic gate…”
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7
Magnon–fluxon interaction in a ferromagnet/superconductor heterostructure
Published in Nature physics (01-05-2019)“…Ferromagnetism and superconductivity are most fundamental phenomena in condensed-matter physics. Entailing opposite spin orders, they share an important…”
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8
Stimulated Amplification of Propagating Spin Waves
Published in Physical review letters (13-10-2023)“…Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in…”
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9
Spin-wave excitation and propagation in microstructured waveguides of yttrium iron garnet/Pt bilayers
Published in Applied physics letters (06-01-2014)“…We present an experimental study of spin-wave excitation and propagation in microstructured waveguides consisting of a 100 nm thick yttrium iron…”
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10
Spin-wave eigenmodes in direct-write 3D nanovolcanoes
Published in Applied physics letters (29-03-2021)“…Extending nanostructures into the third dimension has become a major research avenue in modern magnetism, superconductivity, and spintronics, because of…”
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11
Fast long-wavelength exchange spin waves in partially compensated Ga:YIG
Published in Applied physics letters (07-03-2022)“…Spin waves in yttrium iron garnet (YIG) nano-structures attract increasing attention from the perspective of novel magnon-based data processing applications…”
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12
Spin pumping by parametrically excited exchange magnons
Published in Physical review letters (27-05-2011)“…We experimentally show that exchange magnons can be detected by using a combination of spin pumping and the inverse spin-Hall effect proving its wavelength…”
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13
Engineered magnetization and exchange stiffness in direct-write Co–Fe nanoelements
Published in Applied physics letters (11-01-2021)“…Media with engineered magnetization are essential building blocks in magnonics, spintronics, and superconductivity. However, the established thin film and…”
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14
Unidirectional spin-wave heat conveyer
Published in Nature materials (01-06-2013)“…When energy is introduced into a region of matter, it heats up and the local temperature increases. This energy spontaneously diffuses away from the heated…”
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15
Storage-recovery phenomenon in magnonic crystal
Published in Physical review letters (20-06-2012)“…The phenomenon of coherent wave trapping and restoration is demonstrated experimentally in a magnonic crystal. Unlike the conventional scheme used in…”
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16
Spin-transfer torque based damping control of parametrically excited spin waves in a magnetic insulator
Published in Applied physics letters (04-01-2016)“…The damping of spin waves parametrically excited in the magnetic insulator Yttrium Iron Garnet (YIG) is controlled by a dc current passed through an adjacent…”
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17
Nanoscale spin-wave wake-up receiver
Published in Applied physics letters (26-08-2019)“…We present the concept of a passive spin-wave device which is able to distinguish different radio frequency pulse trains and validate its functionality using…”
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18
Spin-wave logic devices based on isotropic forward volume magnetostatic waves
Published in Applied physics letters (25-05-2015)“…We propose the utilization of isotropic forward volume magnetostatic spin waves in modern wave-based logic devices and suggest a concrete design for a…”
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19
Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures
Published in Applied physics letters (11-02-2013)“…We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron…”
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20
Oscillatory energy exchange between waves coupled by a dynamic artificial crystal
Published in Physical review letters (06-01-2012)“…We describe a general mechanism of controllable energy exchange between waves propagating in a dynamic artificial crystal. We show that if a spatial…”
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