172 citations · 521 across the 11 of their papers we have counts for
11 papers
Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
Ryuhei Kohno, Kyongmo An, Eric Clot +14
This review provides a comprehensive study of the nonlinear transport properties of magnons, which are electrically emitted or absorbed inside extended YIG films by spin transfer e…
Bright and dark states of two distant macrospins strongly coupled by phonons
Kyongmo An, Ryuhei Kohno, Artem N. Litvinenko +10
We study the collective dynamics of two distant magnets coherently coupled by acoustic phonons that are transmitted through an intercalated crystal. By tuning the ferromagnetic res…
Short-range Thermal Magnon Diffusion in Magnetic Garnet
Kyongmo An, Ryuhei Kohno, Nicolas Thiery +8
Using the spin Seebeck effect (SSE), we study the propagation distance of thermal spin currents inside a magnetic insulator thin film in the short-range regime. We disambiguate spi…
Dimensional crossover in spin Hall oscillators
Andrew Smith, Kemal Sobotkiewich, Amanatullah Khan +9
Auto-oscillations of magnetization driven by direct spin current have been previously observed in multiple quasi-zero-dimensional (0D) ferromagnetic systems such as nanomagnets and…
Coherent long-range transfer of angular momentum between magnon Kittel modes by phonons
Kyongmo An, Artem N. Litvinenko, Ryuhei Kohno +13
We report ferromagnetic resonance in the normal configuration of an electrically insulating magnetic bilayer consisting of two yttrium iron garnet (YIG) films epitaxially grown on…
Optimization of Multi-Frequency Magnonic Waveguides with Enhanced Group Velocities by Exchange Coupled Ferrimagnet/Ferromagnet Bilayers
Kyongmo An, Vinayak Bhat, Michal Mruczkiewicz +2
We report broadband spectroscopy and numerical analysis by which we explore propagating spin waves in a magnetic bilayer consisting of a 23 nm thick permalloy film deposited on 130…
Interfacial Control of Dzyaloshinskii Moriya Interaction in Heavy Metal_Ferromagnetic Metal Thin Film Heterostructures
Xin Ma, Guoqiang Yu, Xiang Li +8
The interfacial Dzyaloshinskii Moriya Interaction (DMI) in ultrathin magnetic thin film heterostructures provides a new approach for controlling spin textures on mesoscopic length…
Current Control of Magnetic Anisotropy via Stress in a Ferromagnetic Metal Waveguide
Kyongmo An, Xin Ma, Chi-Feng Pai +6
We demonstrate that in-plane charge current can effectively control the spin precession resonance in an Al2O3/CoFeB/Ta heterostructure. Brillouin Light Scattering (BLS) was used to…
Magnons and Phonons Optically Driven Out of Local Equilibrium in a Magnetic Insulator
Kyongmo An, Kevin S. Olsson, Annie Weathers +9
Magnons are the energy quanta of fundamental spin excitations, namely spin waves, and they can make a considerable contribution to energy transport in some magnetic materials in a…
Control of Propagating Spin Waves via Spin Transfer Torque in a Metallic Bilayer Waveguide
Kyongmo An, Daniel R. Birt, Chi-Feng Pai +4
We investigate the effect of a direct current on propagating spin waves in a CoFeB/Ta bilayer structure. Using the micro-Brillouin light scattering technique, we observe that the s…
Brillouin Light Scattering Spectra as local Temperature Sensors for Thermal Magnons and Acoustic Phonons
Daniel R. Birt, Kyongmo An, Annie Weathers +3
We demonstrate the use of the micro-Brillouin light scattering (micro-BLS) technique as a local temperature sensor for magnons in a Permalloy thin film and phonons in the glass sub…