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Deeply nonlinear magnon-photon hybrid excitation
Dinesh Wagle, Anish Rai, M. Benjamin Jungfleisch
We investigate the microwave-power dependence of magnon-photon coupling in a yttrium iron garnet-sphere/split-ring-resonator hybrid system at room temperature and demonstrate that…
Quantum geometric origins of the orbital degrees of freedom of hybrid bosonic quasiparticles in magnetic systems
D. Quang To, Dai Q. Ho, Joshua M. O. Zide +5
The orbital degree of freedom has recently attracted significant attention due to the novel phenomena it enables in condensed matter systems. However, the interpretation of the orb…
Nanoscale Dipolar Fields in Artificial Spin Ice Probed by Scanning NV Magnetometry
Ephraim Spindler, Vinayak Shantaram Bhat, Elke Neu +2
We investigate dipolar coupling fields in two square-lattice artificial spin ice (ASI) systems with different lattice constants using scanning probe microscopy based on a single ni…
Dynamic Fingerprint of Controlled Structural Disorder in Artificial Spin Lattices
Vinayak Shantaram Bhat, M. Benjamin Jungfleisch
Investigating the emergence of complexity in disordered interacting systems, central to fields like spin glass physics, remains challenging due to difficulties in systematic experi…
Spin pumping driven by magnon-polaritons in a ferromagnet-coplanar superconducting resonator hybrid system
Dinesh Wagle, Yi Li, Anish Rai +3
We demonstrate spin pumping driven by a strongly coupled magnon-photon system using a ferromagnet-coplanar superconducting resonator hybrid system at 1.4 K. Electrical readout via…
Edge-prompted spin waves probed via magneto-optical effect in the infrared
Junming Wu, Dinesh Wagle, Yuzan Xiong +7
Recent advances in magnonics highlight the need for employing spin wave characteristics as new state variables, which is to be detected and mapped out with high precision in all-on…
Artificial Spin Ice: A Tutorial on Design and Control of Geometry, Microstate, Magnon Dynamics & Neuromorphic Computing
Rawnak Sultana, Amrit Kumar Mondal, Vinayak Shantaram Bhat +9
Artificial spin ice, arrays of strongly interacting nanomagnets, are complex magnetic systems with many emergent properties, rich microstate spaces, intrinsic physical memory, high…
Observation of thermally activated coherent magnon-magnon coupling in a magnonic hybrid system
Dinesh Wagle, Yi Li, Mojtaba Taghipour Kaffash +4
We experimentally demonstrate strong magnon-magnon coupling by thermal spin excitations in yttrium iron garnet/permalloy (YIG/Py) hybrid structures using microfocused Brillouin lig…
Deciphering the origin of spin current in spintronic terahertz emitters and its imprint on their electromagnetic radiation via time-dependent density functional theory
Ali Kefayati, Yafei Ren, M. Benjamin Jungfleisch +3
Spin current flowing between femtosecond laser pulse (fsLP)-driven ferromagnetic metal and adjacent normal metal (NM) hosting strong spin-orbit coupling is invariably invoked to ex…
Electric polarization induced by magnons and magnon Nernst effects
D. Quang To, Federico Garcia-Gaitan, Yafei Ren +5
Magnons offer a promising path toward energy-efficient information transmission and the development of next-generation classical and quantum computing technologies. However, method…
Shaping non-reciprocal caustic spin-wave beams
Dinesh Wagle, Daniel Stoeffler, Loic Temdie +8
A caustic is a mathematical concept describing the beam formation when the beam envelope is reflected or refracted by a manifold. While caustics are common in a wide range of physi…
Charge and spin current pumping by ultrafast demagnetization dynamics
Jalil Varela-Manjarres, Ali Kefayati, M. Benjamin Jungfleisch +2
The surprising discovery of ultrafast demagnetization -- where electric field of femtosecond laser pulse couples to electrons of a ferromagnetic (FM) layer causing its magnetizatio…
Probing Spin Wave Diffraction Patterns of Curved Antennas
Loic Temdie, Vincent Castel, Vincent Vlaminck +6
We report on the dependence of curvilinear shaped coplanar waveguides on the near-field diffraction patterns of spin waves propagating in perpendicularly magnetized thin films. Imp…
Ultrastrong magnon-magnon coupling and chiral spin-texture control in a dipolar 3D multilayered artificial spin-vortex ice
Troy Dion, Kilian D. Stenning, Alex Vanstone +12
Strongly-interacting nanomagnetic arrays are ideal systems for exploring reconfigurable magnonics. They provide huge microstate spaces and integrated solutions for storage and neur…
Giant spin Nernst effect in a two-dimensional antiferromagnet due to magnetoelastic coupling-induced gaps and interband transitions between magnon-like bands
D. -Q. To, C. Y. Ameyaw, A. Suresh +7
We analyze theoretically the origin of the spin Nernst and thermal Hall effects in FePS3 as a realization of two-dimensional antiferromagnet (2D AFM). We find that a strong magneto…
Control of magnon-photon coupling by spin torque
Anish Rai, M. Benjamin Jungfleisch
We demonstrate the influence of damping and field-like torques in the magnon-photon coupling process by classically integrating the generalized Landau-Lifshitz-Gilbert equation wit…
Magnon-magnon interactions induced by spin pumping-driven symmetry breaking in synthetic antiferromagnets
Mitra Mani Subedi, Kuangyin Deng, Yuzan Xiong +9
The richness in both the dispersion and energy of antiferromagnetic magnons has spurred the magnetism community to consider antiferromagnets for future spintronic/magnonic applicat…
Phonon-mediated strong coupling between a three-dimensional topological insulator and a two-dimensional antiferromagnetic material
D. Quang To, Weipeng Wu, Subhash Bhatt +8
Van der Waals antiferromagnetic and topological insulator materials provide powerful platforms for modern optical, electronic, and spintronic devices applications. The interaction…
Observation of mode splitting in artificial spin ice
Sergi Lendinez, Mojtaba Taghipour Kaffash, M. Benjamin Jungfleisch
We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques…
Emergent spin dynamics enabled by lattice interactions in a bicomponent artificial spin ice
Sergi Lendinez, Mojtaba T. Kaffash, M. Benjamin Jungfleisch
Artificial spin ice (ASI) are arrays on nanoscaled magnets that can serve both as models for frustration in atomic spin ice as well as for exploring new spin-wave-based strategies…
Temperature-Dependent Anisotropic Magnetoresistance and Spin-Torque-Driven Vortex Dynamics in a Single Microdisk
Sergi Lendinez, Tomas Polakovic, Junjia Ding +4
Spin-orbit-torque-driven dynamics have recently gained interest in the field of magnetism due to the reduced requirement of current densities and an increase in efficiency, as well…
Control of spin dynamics in artificial honeycomb spin-ice-based nanodisks
Mojtaba Taghipour Kaffash, Wonbae Bang, Sergi Lendinez +3
We report the experimental and theoretical characterization of the angular-dependent spin dynamics in arrays of ferromagnetic nanodisks arranged on a honeycomb lattice. The magneti…
Controlled interconversion of quantized spin wave modes via local magnetic fields
Zhizhi Zhang, Michael Vogel, José Holanda +9
In the emerging field of magnonics, spin waves are considered for information processing and transmission at high frequencies. Towards this end, the manipulation of propagating spi…
Spincaloritronic measurements: a round robin comparison of the longitudinal spin Seebeck effect
A. Sola, V. Basso, M. Kuepferling +16
The rising field of spin caloritronics focuses on the interactions between spin and heat currents in a magnetic material; the observation of the spin Seebeck effect opened the rout…